Flights from Washington to London (IAD to LCY)

Discover more affordable dates and routes for flights from Washington to London (IAD to LCY) within a date range.

⭐ Search by country or region to discover more affordable routes, like Netherlands → Italy or Europe → South East Asia.

US$
Hours
Hours
Loading…
  • US$832
    Swiss International Air LinesSwiss International Air Lines
    8:45pm - 5:30pm
    Tue Sep 23rd 2025
    15h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Tue Sep 23rd 2025 Swiss International Air Lines · LX 73 Depart at 8:45pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 10:50am in Zürich (ZRH)

    Layover in Zürich for 6h 0m

    Wed Sep 24th 2025 Swiss International Air Lines · LX 464 Depart at 4:50pm from Zürich (ZRH) Fly for 1h 40m Arrive at 5:30pm in London (LCY)

  • US$832
    Swiss International Air LinesSwiss International Air Lines
    8:45pm - 6:45pm
    Wed Sep 10th 2025
    17h 0m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Wed Sep 10th 2025 Swiss International Air Lines · LX 73 Depart at 8:45pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 10:50am in Zürich (ZRH)

    Layover in Zürich for 7h 15m

    Thu Sep 11th 2025 Swiss International Air Lines · LX 466 Depart at 6:05pm from Zürich (ZRH) Fly for 1h 40m Arrive at 6:45pm in London (LCY)

  • US$832
    Swiss International Air LinesSwiss International Air Lines
    8:45pm - 6:45pm
    Tue Sep 9th 2025
    17h 0m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Tue Sep 9th 2025 Swiss International Air Lines · LX 73 Depart at 8:45pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 10:50am in Zürich (ZRH)

    Layover in Zürich for 7h 15m

    Wed Sep 10th 2025 Swiss International Air Lines · LX 466 Depart at 6:05pm from Zürich (ZRH) Fly for 1h 40m Arrive at 6:45pm in London (LCY)

  • US$875
    United AirlinesSwiss International Air Lines
    5:45pm - 12:30pm
    Wed Sep 10th 2025
    13h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Wed Sep 10th 2025 United Airlines · UA 52 Depart at 5:45pm from Washington, D.C. (IAD) Fly for 8h 20m Arrive at 8:05am in Zürich (ZRH)

    Layover in Zürich for 3h 45m

    Thu Sep 11th 2025 Swiss International Air Lines · LX 456 Depart at 11:50am from Zürich (ZRH) Fly for 1h 40m Arrive at 12:30pm in London (LCY)

  • US$875
    United AirlinesSwiss International Air Lines
    5:45pm - 12:30pm
    Mon Sep 22nd 2025
    13h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Mon Sep 22nd 2025 United Airlines · UA 52 Depart at 5:45pm from Washington, D.C. (IAD) Fly for 8h 20m Arrive at 8:05am in Zürich (ZRH)

    Layover in Zürich for 3h 45m

    Tue Sep 23rd 2025 Swiss International Air Lines · LX 456 Depart at 11:50am from Zürich (ZRH) Fly for 1h 40m Arrive at 12:30pm in London (LCY)

  • US$875
    United AirlinesSwiss International Air Lines
    5:45pm - 12:30pm
    Mon Sep 8th 2025
    13h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Mon Sep 8th 2025 United Airlines · UA 52 Depart at 5:45pm from Washington, D.C. (IAD) Fly for 8h 20m Arrive at 8:05am in Zürich (ZRH)

    Layover in Zürich for 3h 45m

    Tue Sep 9th 2025 Swiss International Air Lines · LX 456 Depart at 11:50am from Zürich (ZRH) Fly for 1h 40m Arrive at 12:30pm in London (LCY)

  • US$880
    United AirlinesSwiss International Air Lines
    5:45pm - 12:30pm
    Tue Sep 23rd 2025
    13h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Tue Sep 23rd 2025 United Airlines · UA 52 Depart at 5:45pm from Washington, D.C. (IAD) Fly for 8h 20m Arrive at 8:05am in Zürich (ZRH)

    Layover in Zürich for 3h 45m

    Wed Sep 24th 2025 Swiss International Air Lines · LX 456 Depart at 11:50am from Zürich (ZRH) Fly for 1h 40m Arrive at 12:30pm in London (LCY)

  • US$880
    United AirlinesSwiss International Air Lines
    5:45pm - 12:30pm
    Tue Sep 9th 2025
    13h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Tue Sep 9th 2025 United Airlines · UA 52 Depart at 5:45pm from Washington, D.C. (IAD) Fly for 8h 20m Arrive at 8:05am in Zürich (ZRH)

    Layover in Zürich for 3h 45m

    Wed Sep 10th 2025 Swiss International Air Lines · LX 456 Depart at 11:50am from Zürich (ZRH) Fly for 1h 40m Arrive at 12:30pm in London (LCY)

  • US$885
    LufthansaLufthansa
    3:25pm - 8:10am
    Mon Sep 8th 2025
    11h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Mon Sep 8th 2025 Lufthansa · LH 417 Depart at 3:25pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 5:30am in Frankfurt (FRA)

    Layover in Frankfurt for 2h 15m

    Tue Sep 9th 2025 Lufthansa · LH 5656 Depart at 7:45am from Frankfurt (FRA) Fly for 1h 25m Arrive at 8:10am in London (LCY)

  • US$885
    LufthansaLufthansa
    3:25pm - 8:10am
    Tue Sep 9th 2025
    11h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Tue Sep 9th 2025 Lufthansa · LH 417 Depart at 3:25pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 5:30am in Frankfurt (FRA)

    Layover in Frankfurt for 2h 15m

    Wed Sep 10th 2025 Lufthansa · LH 5656 Depart at 7:45am from Frankfurt (FRA) Fly for 1h 25m Arrive at 8:10am in London (LCY)

  • US$885
    LufthansaLufthansa
    3:25pm - 8:10am
    Sun Sep 14th 2025
    11h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Sun Sep 14th 2025 Lufthansa · LH 417 Depart at 3:25pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 5:30am in Frankfurt (FRA)

    Layover in Frankfurt for 2h 15m

    Mon Sep 15th 2025 Lufthansa · LH 5656 Depart at 7:45am from Frankfurt (FRA) Fly for 1h 25m Arrive at 8:10am in London (LCY)

  • US$885
    LufthansaLufthansa
    3:25pm - 8:10am
    Sun Sep 21st 2025
    11h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Sun Sep 21st 2025 Lufthansa · LH 417 Depart at 3:25pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 5:30am in Frankfurt (FRA)

    Layover in Frankfurt for 2h 15m

    Mon Sep 22nd 2025 Lufthansa · LH 5656 Depart at 7:45am from Frankfurt (FRA) Fly for 1h 25m Arrive at 8:10am in London (LCY)

  • US$885
    LufthansaLufthansa
    6:10pm - 4:25pm
    Wed Sep 10th 2025
    17h 15m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Wed Sep 10th 2025 Lufthansa · LH 419 Depart at 6:10pm from Washington, D.C. (IAD) Fly for 7h 50m Arrive at 8:00am in Frankfurt (FRA)

    Layover in Frankfurt for 8h 0m

    Thu Sep 11th 2025 Lufthansa · LH 6930 Depart at 4:00pm from Frankfurt (FRA) Fly for 1h 25m Arrive at 4:25pm in London (LCY)

  • US$886
    LufthansaLufthansa
    3:25pm - 8:10am
    Mon Sep 22nd 2025
    11h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Mon Sep 22nd 2025 Lufthansa · LH 417 Depart at 3:25pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 5:30am in Frankfurt (FRA)

    Layover in Frankfurt for 2h 15m

    Tue Sep 23rd 2025 Lufthansa · LH 5656 Depart at 7:45am from Frankfurt (FRA) Fly for 1h 25m Arrive at 8:10am in London (LCY)

  • US$895
    United AirlinesUnited Airlines
    8:45pm - 12:30pm
    Mon Sep 22nd 2025
    10h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Mon Sep 22nd 2025 United Airlines · UA 9741 Depart at 8:45pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 10:50am in Zürich (ZRH)

    Layover in Zürich for 1h 0m

    Tue Sep 23rd 2025 United Airlines · UA 9776 Depart at 11:50am from Zürich (ZRH) Fly for 1h 40m Arrive at 12:30pm in London (LCY)

  • US$895
    United AirlinesUnited Airlines
    8:45pm - 12:30pm
    Tue Sep 9th 2025
    10h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Tue Sep 9th 2025 United Airlines · UA 9741 Depart at 8:45pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 10:50am in Zürich (ZRH)

    Layover in Zürich for 1h 0m

    Wed Sep 10th 2025 United Airlines · UA 9776 Depart at 11:50am from Zürich (ZRH) Fly for 1h 40m Arrive at 12:30pm in London (LCY)

  • US$895
    United AirlinesUnited Airlines
    5:45pm - 12:30pm
    Wed Sep 10th 2025
    13h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Wed Sep 10th 2025 United Airlines · UA 52 Depart at 5:45pm from Washington, D.C. (IAD) Fly for 8h 20m Arrive at 8:05am in Zürich (ZRH)

    Layover in Zürich for 3h 45m

    Thu Sep 11th 2025 United Airlines · UA 9776 Depart at 11:50am from Zürich (ZRH) Fly for 1h 40m Arrive at 12:30pm in London (LCY)

  • US$895
    United AirlinesUnited Airlines
    5:45pm - 12:30pm
    Tue Sep 9th 2025
    13h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Tue Sep 9th 2025 United Airlines · UA 52 Depart at 5:45pm from Washington, D.C. (IAD) Fly for 8h 20m Arrive at 8:05am in Zürich (ZRH)

    Layover in Zürich for 3h 45m

    Wed Sep 10th 2025 United Airlines · UA 9776 Depart at 11:50am from Zürich (ZRH) Fly for 1h 40m Arrive at 12:30pm in London (LCY)

  • US$896
    United AirlinesUnited Airlines
    8:45pm - 12:30pm
    Tue Sep 23rd 2025
    10h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Tue Sep 23rd 2025 United Airlines · UA 9741 Depart at 8:45pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 10:50am in Zürich (ZRH)

    Layover in Zürich for 1h 0m

    Wed Sep 24th 2025 United Airlines · UA 9776 Depart at 11:50am from Zürich (ZRH) Fly for 1h 40m Arrive at 12:30pm in London (LCY)

  • US$896
    United AirlinesUnited Airlines
    8:45pm - 12:30pm
    Wed Sep 10th 2025
    10h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Wed Sep 10th 2025 United Airlines · UA 9741 Depart at 8:45pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 10:50am in Zürich (ZRH)

    Layover in Zürich for 1h 0m

    Thu Sep 11th 2025 United Airlines · UA 9776 Depart at 11:50am from Zürich (ZRH) Fly for 1h 40m Arrive at 12:30pm in London (LCY)

  • US$897
    United AirlinesUnited Airlines
    8:45pm - 12:30pm
    Mon Sep 8th 2025
    10h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Mon Sep 8th 2025 United Airlines · UA 9741 Depart at 8:45pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 10:50am in Zürich (ZRH)

    Layover in Zürich for 1h 0m

    Tue Sep 9th 2025 United Airlines · UA 9776 Depart at 11:50am from Zürich (ZRH) Fly for 1h 40m Arrive at 12:30pm in London (LCY)

  • US$897
    Swiss International Air LinesSwiss International Air Lines
    8:45pm - 12:30pm
    Wed Sep 24th 2025
    10h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Wed Sep 24th 2025 Swiss International Air Lines · LX 73 Depart at 8:45pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 10:50am in Zürich (ZRH)

    Layover in Zürich for 1h 0m

    Thu Sep 25th 2025 Swiss International Air Lines · LX 456 Depart at 11:50am from Zürich (ZRH) Fly for 1h 40m Arrive at 12:30pm in London (LCY)

  • US$897
    Swiss International Air LinesSwiss International Air Lines
    8:45pm - 12:30pm
    Tue Sep 9th 2025
    10h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Tue Sep 9th 2025 Swiss International Air Lines · LX 73 Depart at 8:45pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 10:50am in Zürich (ZRH)

    Layover in Zürich for 1h 0m

    Wed Sep 10th 2025 Swiss International Air Lines · LX 456 Depart at 11:50am from Zürich (ZRH) Fly for 1h 40m Arrive at 12:30pm in London (LCY)

  • US$897
    Swiss International Air LinesSwiss International Air Lines
    8:45pm - 12:30pm
    Sun Sep 21st 2025
    10h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Sun Sep 21st 2025 Swiss International Air Lines · LX 73 Depart at 8:45pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 10:50am in Zürich (ZRH)

    Layover in Zürich for 1h 0m

    Mon Sep 22nd 2025 Swiss International Air Lines · LX 456 Depart at 11:50am from Zürich (ZRH) Fly for 1h 40m Arrive at 12:30pm in London (LCY)

  • US$897
    Swiss International Air LinesSwiss International Air Lines
    8:45pm - 12:30pm
    Mon Sep 22nd 2025
    10h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Mon Sep 22nd 2025 Swiss International Air Lines · LX 73 Depart at 8:45pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 10:50am in Zürich (ZRH)

    Layover in Zürich for 1h 0m

    Tue Sep 23rd 2025 Swiss International Air Lines · LX 456 Depart at 11:50am from Zürich (ZRH) Fly for 1h 40m Arrive at 12:30pm in London (LCY)

  • US$897
    Swiss International Air LinesSwiss International Air Lines
    8:45pm - 12:30pm
    Tue Sep 23rd 2025
    10h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Tue Sep 23rd 2025 Swiss International Air Lines · LX 73 Depart at 8:45pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 10:50am in Zürich (ZRH)

    Layover in Zürich for 1h 0m

    Wed Sep 24th 2025 Swiss International Air Lines · LX 456 Depart at 11:50am from Zürich (ZRH) Fly for 1h 40m Arrive at 12:30pm in London (LCY)

  • US$897
    Swiss International Air LinesSwiss International Air Lines
    8:45pm - 12:30pm
    Wed Sep 10th 2025
    10h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Wed Sep 10th 2025 Swiss International Air Lines · LX 73 Depart at 8:45pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 10:50am in Zürich (ZRH)

    Layover in Zürich for 1h 0m

    Thu Sep 11th 2025 Swiss International Air Lines · LX 456 Depart at 11:50am from Zürich (ZRH) Fly for 1h 40m Arrive at 12:30pm in London (LCY)

  • US$897
    Swiss International Air LinesSwiss International Air Lines
    8:45pm - 12:30pm
    Sun Sep 14th 2025
    10h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Sun Sep 14th 2025 Swiss International Air Lines · LX 73 Depart at 8:45pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 10:50am in Zürich (ZRH)

    Layover in Zürich for 1h 0m

    Mon Sep 15th 2025 Swiss International Air Lines · LX 456 Depart at 11:50am from Zürich (ZRH) Fly for 1h 40m Arrive at 12:30pm in London (LCY)

  • US$897
    Swiss International Air LinesSwiss International Air Lines
    8:45pm - 12:30pm
    Mon Sep 8th 2025
    10h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Mon Sep 8th 2025 Swiss International Air Lines · LX 73 Depart at 8:45pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 10:50am in Zürich (ZRH)

    Layover in Zürich for 1h 0m

    Tue Sep 9th 2025 Swiss International Air Lines · LX 456 Depart at 11:50am from Zürich (ZRH) Fly for 1h 40m Arrive at 12:30pm in London (LCY)

  • US$897
    Swiss International Air LinesSwiss International Air Lines
    8:45pm - 5:15pm
    Wed Sep 10th 2025
    15h 30m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Wed Sep 10th 2025 Swiss International Air Lines · LX 73 Depart at 8:45pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 10:50am in Zürich (ZRH)

    Layover in Zürich for 5h 45m

    Thu Sep 11th 2025 Swiss International Air Lines · LX 464 Depart at 4:35pm from Zürich (ZRH) Fly for 1h 40m Arrive at 5:15pm in London (LCY)

  • US$900
    ITA AirwaysITA Airways
    4:30pm - 10:05am
    Tue Sep 23rd 2025
    12h 35m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Tue Sep 23rd 2025 ITA Airways · AZ 619 Depart at 4:30pm from Washington, D.C. (IAD) Fly for 8h 45m Arrive at 7:15am in Rome (FCO)

    Layover in Rome for 1h 15m

    Wed Sep 24th 2025 ITA Airways · AZ 212 Depart at 8:30am from Rome (FCO) Fly for 2h 35m Arrive at 10:05am in London (LCY)

  • US$900
    ITA AirwaysITA Airways
    4:30pm - 10:05am
    Tue Sep 9th 2025
    12h 35m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Tue Sep 9th 2025 ITA Airways · AZ 619 Depart at 4:30pm from Washington, D.C. (IAD) Fly for 8h 45m Arrive at 7:15am in Rome (FCO)

    Layover in Rome for 1h 15m

    Wed Sep 10th 2025 ITA Airways · AZ 212 Depart at 8:30am from Rome (FCO) Fly for 2h 35m Arrive at 10:05am in London (LCY)

  • US$900
    ITA AirwaysITA Airways
    4:30pm - 10:05am
    Sun Sep 21st 2025
    12h 35m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Sun Sep 21st 2025 ITA Airways · AZ 619 Depart at 4:30pm from Washington, D.C. (IAD) Fly for 8h 45m Arrive at 7:15am in Rome (FCO)

    Layover in Rome for 1h 15m

    Mon Sep 22nd 2025 ITA Airways · AZ 212 Depart at 8:30am from Rome (FCO) Fly for 2h 35m Arrive at 10:05am in London (LCY)

  • US$900
    ITA AirwaysITA Airways
    4:30pm - 10:05am
    Mon Sep 22nd 2025
    12h 35m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Mon Sep 22nd 2025 ITA Airways · AZ 619 Depart at 4:30pm from Washington, D.C. (IAD) Fly for 8h 45m Arrive at 7:15am in Rome (FCO)

    Layover in Rome for 1h 15m

    Tue Sep 23rd 2025 ITA Airways · AZ 212 Depart at 8:30am from Rome (FCO) Fly for 2h 35m Arrive at 10:05am in London (LCY)

  • US$900
    ITA AirwaysITA Airways
    4:30pm - 10:05am
    Mon Sep 8th 2025
    12h 35m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Mon Sep 8th 2025 ITA Airways · AZ 619 Depart at 4:30pm from Washington, D.C. (IAD) Fly for 8h 45m Arrive at 7:15am in Rome (FCO)

    Layover in Rome for 1h 15m

    Tue Sep 9th 2025 ITA Airways · AZ 212 Depart at 8:30am from Rome (FCO) Fly for 2h 35m Arrive at 10:05am in London (LCY)

  • US$904
    United AirlinesUnited Airlines
    8:45pm - 12:30pm
    Sun Sep 14th 2025
    10h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Sun Sep 14th 2025 United Airlines · UA 9741 Depart at 8:45pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 10:50am in Zürich (ZRH)

    Layover in Zürich for 1h 0m

    Mon Sep 15th 2025 United Airlines · UA 9776 Depart at 11:50am from Zürich (ZRH) Fly for 1h 40m Arrive at 12:30pm in London (LCY)

  • US$905
    ITA AirwaysITA Airways
    4:30pm - 10:05am
    Sun Sep 14th 2025
    12h 35m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Sun Sep 14th 2025 ITA Airways · AZ 619 Depart at 4:30pm from Washington, D.C. (IAD) Fly for 8h 45m Arrive at 7:15am in Rome (FCO)

    Layover in Rome for 1h 15m

    Mon Sep 15th 2025 ITA Airways · AZ 212 Depart at 8:30am from Rome (FCO) Fly for 2h 35m Arrive at 10:05am in London (LCY)

  • US$908
    United AirlinesAir Dolomiti
    3:25pm - 8:10am
    Sun Sep 14th 2025
    11h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Sun Sep 14th 2025 United Airlines · UA 8833 Depart at 3:25pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 5:30am in Frankfurt (FRA)

    Layover in Frankfurt for 2h 15m

    Mon Sep 15th 2025 Air Dolomiti · EN 8772 Depart at 7:45am from Frankfurt (FRA) Fly for 1h 25m Arrive at 8:10am in London (LCY)

  • US$908
    United AirlinesAir Dolomiti
    10:15pm - 4:25pm
    Sun Sep 14th 2025
    13h 10m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Sun Sep 14th 2025 United Airlines · UA 932 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 55m Arrive at 12:10pm in Frankfurt (FRA)

    Layover in Frankfurt for 3h 50m

    Mon Sep 15th 2025 Air Dolomiti · EN 8776 Depart at 4:00pm from Frankfurt (FRA) Fly for 1h 25m Arrive at 4:25pm in London (LCY)

  • US$908
    United AirlinesAir Dolomiti
    10:15pm - 4:25pm
    Mon Sep 22nd 2025
    13h 10m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Mon Sep 22nd 2025 United Airlines · UA 932 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 55m Arrive at 12:10pm in Frankfurt (FRA)

    Layover in Frankfurt for 3h 50m

    Tue Sep 23rd 2025 Air Dolomiti · EN 8776 Depart at 4:00pm from Frankfurt (FRA) Fly for 1h 25m Arrive at 4:25pm in London (LCY)

  • US$908
    United AirlinesAir Dolomiti
    10:15pm - 4:25pm
    Sun Sep 21st 2025
    13h 10m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Sun Sep 21st 2025 United Airlines · UA 932 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 55m Arrive at 12:10pm in Frankfurt (FRA)

    Layover in Frankfurt for 3h 50m

    Mon Sep 22nd 2025 Air Dolomiti · EN 8776 Depart at 4:00pm from Frankfurt (FRA) Fly for 1h 25m Arrive at 4:25pm in London (LCY)

  • US$908
    United AirlinesAir Dolomiti
    10:15pm - 4:25pm
    Wed Sep 24th 2025
    13h 10m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Wed Sep 24th 2025 United Airlines · UA 932 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 55m Arrive at 12:10pm in Frankfurt (FRA)

    Layover in Frankfurt for 3h 50m

    Thu Sep 25th 2025 Air Dolomiti · EN 8776 Depart at 4:00pm from Frankfurt (FRA) Fly for 1h 25m Arrive at 4:25pm in London (LCY)

  • US$908
    United AirlinesAir Dolomiti
    10:15pm - 6:35pm
    Wed Sep 10th 2025
    15h 20m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Wed Sep 10th 2025 United Airlines · UA 932 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 55m Arrive at 12:10pm in Frankfurt (FRA)

    Layover in Frankfurt for 6h 0m

    Thu Sep 11th 2025 Air Dolomiti · EN 8778 Depart at 6:10pm from Frankfurt (FRA) Fly for 1h 25m Arrive at 6:35pm in London (LCY)

  • US$908
    United AirlinesAir Dolomiti
    3:25pm - 8:10am
    Tue Sep 9th 2025
    11h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Tue Sep 9th 2025 United Airlines · UA 8833 Depart at 3:25pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 5:30am in Frankfurt (FRA)

    Layover in Frankfurt for 2h 15m

    Wed Sep 10th 2025 Air Dolomiti · EN 8772 Depart at 7:45am from Frankfurt (FRA) Fly for 1h 25m Arrive at 8:10am in London (LCY)

  • US$908
    United AirlinesAir Dolomiti
    3:25pm - 8:10am
    Mon Sep 8th 2025
    11h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Mon Sep 8th 2025 United Airlines · UA 8833 Depart at 3:25pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 5:30am in Frankfurt (FRA)

    Layover in Frankfurt for 2h 15m

    Tue Sep 9th 2025 Air Dolomiti · EN 8772 Depart at 7:45am from Frankfurt (FRA) Fly for 1h 25m Arrive at 8:10am in London (LCY)

  • US$908
    United AirlinesAir Dolomiti
    10:15pm - 4:25pm
    Mon Sep 8th 2025
    13h 10m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Mon Sep 8th 2025 United Airlines · UA 932 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 55m Arrive at 12:10pm in Frankfurt (FRA)

    Layover in Frankfurt for 3h 50m

    Tue Sep 9th 2025 Air Dolomiti · EN 8776 Depart at 4:00pm from Frankfurt (FRA) Fly for 1h 25m Arrive at 4:25pm in London (LCY)

  • US$908
    United AirlinesAir Dolomiti
    10:15pm - 4:25pm
    Tue Sep 23rd 2025
    13h 10m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Tue Sep 23rd 2025 United Airlines · UA 932 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 55m Arrive at 12:10pm in Frankfurt (FRA)

    Layover in Frankfurt for 3h 50m

    Wed Sep 24th 2025 Air Dolomiti · EN 8776 Depart at 4:00pm from Frankfurt (FRA) Fly for 1h 25m Arrive at 4:25pm in London (LCY)

  • US$914
    United AirlinesAir Dolomiti
    10:15pm - 4:25pm
    Wed Sep 10th 2025
    13h 10m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Wed Sep 10th 2025 United Airlines · UA 932 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 55m Arrive at 12:10pm in Frankfurt (FRA)

    Layover in Frankfurt for 3h 50m

    Thu Sep 11th 2025 Air Dolomiti · EN 8776 Depart at 4:00pm from Frankfurt (FRA) Fly for 1h 25m Arrive at 4:25pm in London (LCY)

  • US$947
    Virgin Atlantic AirwaysVirgin Atlantic Airways
    5:25pm - 8:10am
    Tue Sep 23rd 2025
    9h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Tue Sep 23rd 2025 Virgin Atlantic Airways · VS 7120 Depart at 5:25pm from Washington, D.C. (IAD) Fly for 7h 45m Arrive at 7:10am in Amsterdam (AMS)

    Layover in Amsterdam for 0h 55m

    Wed Sep 24th 2025 Virgin Atlantic Airways · VS 7042 Depart at 8:05am from Amsterdam (AMS) Fly for 1h 5m Arrive at 8:10am in London (LCY)

  • US$947
    Virgin Atlantic AirwaysVirgin Atlantic Airways
    5:25pm - 8:10am
    Sun Sep 21st 2025
    9h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Sun Sep 21st 2025 Virgin Atlantic Airways · VS 7120 Depart at 5:25pm from Washington, D.C. (IAD) Fly for 7h 45m Arrive at 7:10am in Amsterdam (AMS)

    Layover in Amsterdam for 0h 55m

    Mon Sep 22nd 2025 Virgin Atlantic Airways · VS 7042 Depart at 8:05am from Amsterdam (AMS) Fly for 1h 5m Arrive at 8:10am in London (LCY)

  • US$947
    Virgin Atlantic AirwaysVirgin Atlantic Airways
    5:25pm - 8:10am
    Wed Sep 10th 2025
    9h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Wed Sep 10th 2025 Virgin Atlantic Airways · VS 7120 Depart at 5:25pm from Washington, D.C. (IAD) Fly for 7h 45m Arrive at 7:10am in Amsterdam (AMS)

    Layover in Amsterdam for 0h 55m

    Thu Sep 11th 2025 Virgin Atlantic Airways · VS 7042 Depart at 8:05am from Amsterdam (AMS) Fly for 1h 5m Arrive at 8:10am in London (LCY)

  • US$947
    Virgin Atlantic AirwaysVirgin Atlantic Airways
    5:25pm - 8:10am
    Sun Sep 14th 2025
    9h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Sun Sep 14th 2025 Virgin Atlantic Airways · VS 7120 Depart at 5:25pm from Washington, D.C. (IAD) Fly for 7h 45m Arrive at 7:10am in Amsterdam (AMS)

    Layover in Amsterdam for 0h 55m

    Mon Sep 15th 2025 Virgin Atlantic Airways · VS 7042 Depart at 8:05am from Amsterdam (AMS) Fly for 1h 5m Arrive at 8:10am in London (LCY)

  • US$947
    Virgin Atlantic AirwaysVirgin Atlantic Airways
    5:25pm - 8:10am
    Tue Sep 9th 2025
    9h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Tue Sep 9th 2025 Virgin Atlantic Airways · VS 7120 Depart at 5:25pm from Washington, D.C. (IAD) Fly for 7h 45m Arrive at 7:10am in Amsterdam (AMS)

    Layover in Amsterdam for 0h 55m

    Wed Sep 10th 2025 Virgin Atlantic Airways · VS 7042 Depart at 8:05am from Amsterdam (AMS) Fly for 1h 5m Arrive at 8:10am in London (LCY)

  • US$947
    Virgin Atlantic AirwaysVirgin Atlantic Airways
    5:25pm - 8:50am
    Tue Sep 23rd 2025
    10h 25m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Tue Sep 23rd 2025 Virgin Atlantic Airways · VS 7120 Depart at 5:25pm from Washington, D.C. (IAD) Fly for 7h 45m Arrive at 7:10am in Amsterdam (AMS)

    Layover in Amsterdam for 1h 35m

    Wed Sep 24th 2025 Virgin Atlantic Airways · VS 7034 Depart at 8:45am from Amsterdam (AMS) Fly for 1h 5m Arrive at 8:50am in London (LCY)

  • US$947
    Virgin Atlantic AirwaysVirgin Atlantic Airways
    5:25pm - 8:50am
    Sun Sep 21st 2025
    10h 25m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Sun Sep 21st 2025 Virgin Atlantic Airways · VS 7120 Depart at 5:25pm from Washington, D.C. (IAD) Fly for 7h 45m Arrive at 7:10am in Amsterdam (AMS)

    Layover in Amsterdam for 1h 35m

    Mon Sep 22nd 2025 Virgin Atlantic Airways · VS 7034 Depart at 8:45am from Amsterdam (AMS) Fly for 1h 5m Arrive at 8:50am in London (LCY)

  • US$947
    Virgin Atlantic AirwaysVirgin Atlantic Airways
    5:25pm - 8:50am
    Wed Sep 10th 2025
    10h 25m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Wed Sep 10th 2025 Virgin Atlantic Airways · VS 7120 Depart at 5:25pm from Washington, D.C. (IAD) Fly for 7h 45m Arrive at 7:10am in Amsterdam (AMS)

    Layover in Amsterdam for 1h 35m

    Thu Sep 11th 2025 Virgin Atlantic Airways · VS 7034 Depart at 8:45am from Amsterdam (AMS) Fly for 1h 5m Arrive at 8:50am in London (LCY)

  • US$947
    Virgin Atlantic AirwaysVirgin Atlantic Airways
    5:25pm - 8:50am
    Sun Sep 14th 2025
    10h 25m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Sun Sep 14th 2025 Virgin Atlantic Airways · VS 7120 Depart at 5:25pm from Washington, D.C. (IAD) Fly for 7h 45m Arrive at 7:10am in Amsterdam (AMS)

    Layover in Amsterdam for 1h 35m

    Mon Sep 15th 2025 Virgin Atlantic Airways · VS 7034 Depart at 8:45am from Amsterdam (AMS) Fly for 1h 5m Arrive at 8:50am in London (LCY)

  • US$947
    Virgin Atlantic AirwaysVirgin Atlantic Airways
    5:25pm - 8:50am
    Mon Sep 8th 2025
    10h 25m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Mon Sep 8th 2025 Virgin Atlantic Airways · VS 7120 Depart at 5:25pm from Washington, D.C. (IAD) Fly for 7h 45m Arrive at 7:10am in Amsterdam (AMS)

    Layover in Amsterdam for 1h 35m

    Tue Sep 9th 2025 Virgin Atlantic Airways · VS 7034 Depart at 8:45am from Amsterdam (AMS) Fly for 1h 5m Arrive at 8:50am in London (LCY)

  • US$947
    Virgin Atlantic AirwaysVirgin Atlantic Airways
    5:25pm - 9:30am
    Mon Sep 8th 2025
    11h 5m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Mon Sep 8th 2025 Virgin Atlantic Airways · VS 7120 Depart at 5:25pm from Washington, D.C. (IAD) Fly for 7h 45m Arrive at 7:10am in Amsterdam (AMS)

    Layover in Amsterdam for 2h 20m

    Tue Sep 9th 2025 Virgin Atlantic Airways · VS 7036 Depart at 9:30am from Amsterdam (AMS) Fly for 1h 0m Arrive at 9:30am in London (LCY)

  • US$948
    Virgin Atlantic AirwaysVirgin Atlantic Airways
    5:25pm - 8:10am
    Mon Sep 22nd 2025
    9h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Mon Sep 22nd 2025 Virgin Atlantic Airways · VS 7120 Depart at 5:25pm from Washington, D.C. (IAD) Fly for 7h 45m Arrive at 7:10am in Amsterdam (AMS)

    Layover in Amsterdam for 0h 55m

    Tue Sep 23rd 2025 Virgin Atlantic Airways · VS 7042 Depart at 8:05am from Amsterdam (AMS) Fly for 1h 5m Arrive at 8:10am in London (LCY)

  • US$948
    Virgin Atlantic AirwaysVirgin Atlantic Airways
    5:25pm - 8:10am
    Wed Sep 24th 2025
    9h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Wed Sep 24th 2025 Virgin Atlantic Airways · VS 7120 Depart at 5:25pm from Washington, D.C. (IAD) Fly for 7h 45m Arrive at 7:10am in Amsterdam (AMS)

    Layover in Amsterdam for 0h 55m

    Thu Sep 25th 2025 Virgin Atlantic Airways · VS 7042 Depart at 8:05am from Amsterdam (AMS) Fly for 1h 5m Arrive at 8:10am in London (LCY)

  • US$948
    Virgin Atlantic AirwaysVirgin Atlantic Airways
    5:25pm - 8:10am
    Mon Sep 8th 2025
    9h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Mon Sep 8th 2025 Virgin Atlantic Airways · VS 7120 Depart at 5:25pm from Washington, D.C. (IAD) Fly for 7h 45m Arrive at 7:10am in Amsterdam (AMS)

    Layover in Amsterdam for 1h 0m

    Tue Sep 9th 2025 Virgin Atlantic Airways · VS 7042 Depart at 8:10am from Amsterdam (AMS) Fly for 1h 0m Arrive at 8:10am in London (LCY)

  • US$972
    Swiss International Air LinesSwiss International Air Lines
    8:45pm - 6:45pm
    Mon Sep 15th 2025
    17h 0m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Mon Sep 15th 2025 Swiss International Air Lines · LX 73 Depart at 8:45pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 10:50am in Zürich (ZRH)

    Layover in Zürich for 7h 15m

    Tue Sep 16th 2025 Swiss International Air Lines · LX 466 Depart at 6:05pm from Zürich (ZRH) Fly for 1h 40m Arrive at 6:45pm in London (LCY)

  • US$972
    Swiss International Air LinesSwiss International Air Lines
    8:45pm - 6:45pm
    Wed Sep 17th 2025
    17h 0m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Wed Sep 17th 2025 Swiss International Air Lines · LX 73 Depart at 8:45pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 10:50am in Zürich (ZRH)

    Layover in Zürich for 7h 15m

    Thu Sep 18th 2025 Swiss International Air Lines · LX 466 Depart at 6:05pm from Zürich (ZRH) Fly for 1h 40m Arrive at 6:45pm in London (LCY)

  • US$992
    LufthansaLufthansa
    3:25pm - 8:20am
    Thu Sep 11th 2025
    11h 55m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Thu Sep 11th 2025 Lufthansa · LH 417 Depart at 3:25pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 5:30am in Frankfurt (FRA)

    Layover in Frankfurt for 2h 25m

    Fri Sep 12th 2025 Lufthansa · LH 5656 Depart at 7:55am from Frankfurt (FRA) Fly for 1h 25m Arrive at 8:20am in London (LCY)

  • US$999
    United AirlinesSwiss International Air Lines
    5:45pm - 12:30pm
    Tue Sep 16th 2025
    13h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Tue Sep 16th 2025 United Airlines · UA 52 Depart at 5:45pm from Washington, D.C. (IAD) Fly for 8h 20m Arrive at 8:05am in Zürich (ZRH)

    Layover in Zürich for 3h 45m

    Wed Sep 17th 2025 Swiss International Air Lines · LX 456 Depart at 11:50am from Zürich (ZRH) Fly for 1h 40m Arrive at 12:30pm in London (LCY)

  • US$1001
    United AirlinesUnited Airlines
    8:45pm - 12:30pm
    Thu Sep 11th 2025
    10h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Thu Sep 11th 2025 United Airlines · UA 9741 Depart at 8:45pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 10:50am in Zürich (ZRH)

    Layover in Zürich for 1h 0m

    Fri Sep 12th 2025 United Airlines · UA 9776 Depart at 11:50am from Zürich (ZRH) Fly for 1h 40m Arrive at 12:30pm in London (LCY)

  • US$1002
    Swiss International Air LinesSwiss International Air Lines
    8:45pm - 12:30pm
    Thu Sep 11th 2025
    10h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Thu Sep 11th 2025 Swiss International Air Lines · LX 73 Depart at 8:45pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 10:50am in Zürich (ZRH)

    Layover in Zürich for 1h 0m

    Fri Sep 12th 2025 Swiss International Air Lines · LX 456 Depart at 11:50am from Zürich (ZRH) Fly for 1h 40m Arrive at 12:30pm in London (LCY)

  • US$1002
    United AirlinesUnited Airlines
    8:45pm - 1:45pm
    Sat Sep 20th 2025
    12h 0m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Sat Sep 20th 2025 United Airlines · UA 9741 Depart at 8:45pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 10:50am in Zürich (ZRH)

    Layover in Zürich for 2h 15m

    Sun Sep 21st 2025 United Airlines · UA 9776 Depart at 1:05pm from Zürich (ZRH) Fly for 1h 40m Arrive at 1:45pm in London (LCY)

  • US$1002
    United AirlinesUnited Airlines
    5:45pm - 11:40am
    Fri Sep 12th 2025
    12h 55m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Fri Sep 12th 2025 United Airlines · UA 52 Depart at 5:45pm from Washington, D.C. (IAD) Fly for 8h 20m Arrive at 8:05am in Zürich (ZRH)

    Layover in Zürich for 2h 55m

    Sat Sep 13th 2025 United Airlines · UA 9776 Depart at 11:00am from Zürich (ZRH) Fly for 1h 40m Arrive at 11:40am in London (LCY)

  • US$1004
    Swiss International Air LinesSwiss International Air Lines
    8:45pm - 1:45pm
    Sat Sep 20th 2025
    12h 0m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Sat Sep 20th 2025 Swiss International Air Lines · LX 73 Depart at 8:45pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 10:50am in Zürich (ZRH)

    Layover in Zürich for 2h 15m

    Sun Sep 21st 2025 Swiss International Air Lines · LX 456 Depart at 1:05pm from Zürich (ZRH) Fly for 1h 40m Arrive at 1:45pm in London (LCY)

  • US$1004
    Swiss International Air LinesSwiss International Air Lines
    8:45pm - 1:45pm
    Sat Sep 13th 2025
    12h 0m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Sat Sep 13th 2025 Swiss International Air Lines · LX 73 Depart at 8:45pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 10:50am in Zürich (ZRH)

    Layover in Zürich for 2h 15m

    Sun Sep 14th 2025 Swiss International Air Lines · LX 456 Depart at 1:05pm from Zürich (ZRH) Fly for 1h 40m Arrive at 1:45pm in London (LCY)

  • US$1004
    Swiss International Air LinesSwiss International Air Lines
    8:45pm - 5:30pm
    Sat Sep 13th 2025
    15h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Sat Sep 13th 2025 Swiss International Air Lines · LX 73 Depart at 8:45pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 10:50am in Zürich (ZRH)

    Layover in Zürich for 6h 0m

    Sun Sep 14th 2025 Swiss International Air Lines · LX 464 Depart at 4:50pm from Zürich (ZRH) Fly for 1h 40m Arrive at 5:30pm in London (LCY)

  • US$1006
    ITA AirwaysITA Airways
    4:30pm - 10:05am
    Fri Sep 19th 2025
    12h 35m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Fri Sep 19th 2025 ITA Airways · AZ 619 Depart at 4:30pm from Washington, D.C. (IAD) Fly for 8h 45m Arrive at 7:15am in Rome (FCO)

    Layover in Rome for 1h 15m

    Sat Sep 20th 2025 ITA Airways · AZ 212 Depart at 8:30am from Rome (FCO) Fly for 2h 35m Arrive at 10:05am in London (LCY)

  • US$1006
    ITA AirwaysITA Airways
    4:30pm - 10:05am
    Thu Sep 11th 2025
    12h 35m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Thu Sep 11th 2025 ITA Airways · AZ 619 Depart at 4:30pm from Washington, D.C. (IAD) Fly for 8h 45m Arrive at 7:15am in Rome (FCO)

    Layover in Rome for 1h 15m

    Fri Sep 12th 2025 ITA Airways · AZ 212 Depart at 8:30am from Rome (FCO) Fly for 2h 35m Arrive at 10:05am in London (LCY)

  • US$1007
    ITA AirwaysITA Airways
    4:30pm - 10:05am
    Fri Sep 12th 2025
    12h 35m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Fri Sep 12th 2025 ITA Airways · AZ 619 Depart at 4:30pm from Washington, D.C. (IAD) Fly for 8h 45m Arrive at 7:15am in Rome (FCO)

    Layover in Rome for 1h 15m

    Sat Sep 13th 2025 ITA Airways · AZ 212 Depart at 8:30am from Rome (FCO) Fly for 2h 35m Arrive at 10:05am in London (LCY)

  • US$1009
    United AirlinesUnited Airlines
    8:45pm - 1:45pm
    Sat Sep 13th 2025
    12h 0m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Sat Sep 13th 2025 United Airlines · UA 9741 Depart at 8:45pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 10:50am in Zürich (ZRH)

    Layover in Zürich for 2h 15m

    Sun Sep 14th 2025 United Airlines · UA 9776 Depart at 1:05pm from Zürich (ZRH) Fly for 1h 40m Arrive at 1:45pm in London (LCY)

  • US$1014
    United AirlinesUnited Airlines
    8:45pm - 12:30pm
    Wed Sep 17th 2025
    10h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Wed Sep 17th 2025 United Airlines · UA 9741 Depart at 8:45pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 10:50am in Zürich (ZRH)

    Layover in Zürich for 1h 0m

    Thu Sep 18th 2025 United Airlines · UA 9776 Depart at 11:50am from Zürich (ZRH) Fly for 1h 40m Arrive at 12:30pm in London (LCY)

  • US$1014
    United AirlinesUnited Airlines
    8:45pm - 12:30pm
    Mon Sep 15th 2025
    10h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Mon Sep 15th 2025 United Airlines · UA 9741 Depart at 8:45pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 10:50am in Zürich (ZRH)

    Layover in Zürich for 1h 0m

    Tue Sep 16th 2025 United Airlines · UA 9776 Depart at 11:50am from Zürich (ZRH) Fly for 1h 40m Arrive at 12:30pm in London (LCY)

  • US$1015
    United AirlinesAir Dolomiti
    10:15pm - 6:35pm
    Thu Sep 11th 2025
    15h 20m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Thu Sep 11th 2025 United Airlines · UA 932 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 55m Arrive at 12:10pm in Frankfurt (FRA)

    Layover in Frankfurt for 6h 0m

    Fri Sep 12th 2025 Air Dolomiti · EN 8778 Depart at 6:10pm from Frankfurt (FRA) Fly for 1h 25m Arrive at 6:35pm in London (LCY)

  • US$1034
    ITA AirwaysITA Airways
    4:30pm - 10:05am
    Mon Sep 15th 2025
    12h 35m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Mon Sep 15th 2025 ITA Airways · AZ 619 Depart at 4:30pm from Washington, D.C. (IAD) Fly for 8h 45m Arrive at 7:15am in Rome (FCO)

    Layover in Rome for 1h 15m

    Tue Sep 16th 2025 ITA Airways · AZ 212 Depart at 8:30am from Rome (FCO) Fly for 2h 35m Arrive at 10:05am in London (LCY)

  • US$1045
    LufthansaLufthansa
    3:25pm - 8:10am
    Mon Sep 15th 2025
    11h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Mon Sep 15th 2025 Lufthansa · LH 417 Depart at 3:25pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 5:30am in Frankfurt (FRA)

    Layover in Frankfurt for 2h 15m

    Tue Sep 16th 2025 Lufthansa · LH 5656 Depart at 7:45am from Frankfurt (FRA) Fly for 1h 25m Arrive at 8:10am in London (LCY)

  • US$1051
    KLM Royal Dutch AirlinesKLM Royal Dutch Airlines
    5:25pm - 8:10am
    Wed Sep 24th 2025
    9h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Wed Sep 24th 2025 KLM Royal Dutch Airlines · KL 652 Depart at 5:25pm from Washington, D.C. (IAD) Fly for 7h 45m Arrive at 7:10am in Amsterdam (AMS)

    Layover in Amsterdam for 0h 55m

    Thu Sep 25th 2025 KLM Royal Dutch Airlines · KL 979 Depart at 8:05am from Amsterdam (AMS) Fly for 1h 5m Arrive at 8:10am in London (LCY)

  • US$1051
    KLM Royal Dutch AirlinesKLM Royal Dutch Airlines
    5:25pm - 8:10am
    Sun Sep 21st 2025
    9h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Sun Sep 21st 2025 KLM Royal Dutch Airlines · KL 652 Depart at 5:25pm from Washington, D.C. (IAD) Fly for 7h 45m Arrive at 7:10am in Amsterdam (AMS)

    Layover in Amsterdam for 0h 55m

    Mon Sep 22nd 2025 KLM Royal Dutch Airlines · KL 979 Depart at 8:05am from Amsterdam (AMS) Fly for 1h 5m Arrive at 8:10am in London (LCY)

  • US$1051
    KLM Royal Dutch AirlinesKLM Royal Dutch Airlines
    5:25pm - 8:10am
    Mon Sep 8th 2025
    9h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Mon Sep 8th 2025 KLM Royal Dutch Airlines · KL 652 Depart at 5:25pm from Washington, D.C. (IAD) Fly for 7h 45m Arrive at 7:10am in Amsterdam (AMS)

    Layover in Amsterdam for 1h 0m

    Tue Sep 9th 2025 KLM Royal Dutch Airlines · KL 979 Depart at 8:10am from Amsterdam (AMS) Fly for 1h 0m Arrive at 8:10am in London (LCY)

  • US$1054
    Virgin Atlantic AirwaysVirgin Atlantic Airways
    5:25pm - 8:10am
    Fri Sep 19th 2025
    9h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Fri Sep 19th 2025 Virgin Atlantic Airways · VS 7120 Depart at 5:25pm from Washington, D.C. (IAD) Fly for 7h 45m Arrive at 7:10am in Amsterdam (AMS)

    Layover in Amsterdam for 0h 55m

    Sat Sep 20th 2025 Virgin Atlantic Airways · VS 7042 Depart at 8:05am from Amsterdam (AMS) Fly for 1h 5m Arrive at 8:10am in London (LCY)

  • US$1055
    KLM Royal Dutch AirlinesKLM Royal Dutch Airlines
    5:25pm - 8:10am
    Sun Sep 14th 2025
    9h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Sun Sep 14th 2025 KLM Royal Dutch Airlines · KL 652 Depart at 5:25pm from Washington, D.C. (IAD) Fly for 7h 45m Arrive at 7:10am in Amsterdam (AMS)

    Layover in Amsterdam for 0h 55m

    Mon Sep 15th 2025 KLM Royal Dutch Airlines · KL 979 Depart at 8:05am from Amsterdam (AMS) Fly for 1h 5m Arrive at 8:10am in London (LCY)

  • US$1055
    KLM Royal Dutch AirlinesKLM Royal Dutch Airlines
    5:25pm - 8:10am
    Tue Sep 9th 2025
    9h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Tue Sep 9th 2025 KLM Royal Dutch Airlines · KL 652 Depart at 5:25pm from Washington, D.C. (IAD) Fly for 7h 45m Arrive at 7:10am in Amsterdam (AMS)

    Layover in Amsterdam for 0h 55m

    Wed Sep 10th 2025 KLM Royal Dutch Airlines · KL 979 Depart at 8:05am from Amsterdam (AMS) Fly for 1h 5m Arrive at 8:10am in London (LCY)

  • US$1055
    KLM Royal Dutch AirlinesKLM Royal Dutch Airlines
    5:25pm - 8:10am
    Tue Sep 23rd 2025
    9h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Tue Sep 23rd 2025 KLM Royal Dutch Airlines · KL 652 Depart at 5:25pm from Washington, D.C. (IAD) Fly for 7h 45m Arrive at 7:10am in Amsterdam (AMS)

    Layover in Amsterdam for 0h 55m

    Wed Sep 24th 2025 KLM Royal Dutch Airlines · KL 979 Depart at 8:05am from Amsterdam (AMS) Fly for 1h 5m Arrive at 8:10am in London (LCY)

  • US$1055
    KLM Royal Dutch AirlinesKLM Royal Dutch Airlines
    5:25pm - 8:10am
    Wed Sep 10th 2025
    9h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Wed Sep 10th 2025 KLM Royal Dutch Airlines · KL 652 Depart at 5:25pm from Washington, D.C. (IAD) Fly for 7h 45m Arrive at 7:10am in Amsterdam (AMS)

    Layover in Amsterdam for 0h 55m

    Thu Sep 11th 2025 KLM Royal Dutch Airlines · KL 979 Depart at 8:05am from Amsterdam (AMS) Fly for 1h 5m Arrive at 8:10am in London (LCY)

  • US$1055
    Virgin Atlantic AirwaysVirgin Atlantic Airways
    5:25pm - 8:10am
    Thu Sep 11th 2025
    9h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Thu Sep 11th 2025 Virgin Atlantic Airways · VS 7120 Depart at 5:25pm from Washington, D.C. (IAD) Fly for 7h 45m Arrive at 7:10am in Amsterdam (AMS)

    Layover in Amsterdam for 0h 55m

    Fri Sep 12th 2025 Virgin Atlantic Airways · VS 7042 Depart at 8:05am from Amsterdam (AMS) Fly for 1h 5m Arrive at 8:10am in London (LCY)

  • US$1055
    Virgin Atlantic AirwaysVirgin Atlantic Airways
    5:25pm - 8:10am
    Fri Sep 12th 2025
    9h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Fri Sep 12th 2025 Virgin Atlantic Airways · VS 7120 Depart at 5:25pm from Washington, D.C. (IAD) Fly for 7h 45m Arrive at 7:10am in Amsterdam (AMS)

    Layover in Amsterdam for 0h 55m

    Sat Sep 13th 2025 Virgin Atlantic Airways · VS 7042 Depart at 8:05am from Amsterdam (AMS) Fly for 1h 5m Arrive at 8:10am in London (LCY)

  • US$1057
    Swiss International Air LinesSwiss International Air Lines
    8:45pm - 12:30pm
    Mon Sep 15th 2025
    10h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Mon Sep 15th 2025 Swiss International Air Lines · LX 73 Depart at 8:45pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 10:50am in Zürich (ZRH)

    Layover in Zürich for 1h 0m

    Tue Sep 16th 2025 Swiss International Air Lines · LX 456 Depart at 11:50am from Zürich (ZRH) Fly for 1h 40m Arrive at 12:30pm in London (LCY)

  • US$1057
    Swiss International Air LinesSwiss International Air Lines
    8:45pm - 12:30pm
    Wed Sep 17th 2025
    10h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Wed Sep 17th 2025 Swiss International Air Lines · LX 73 Depart at 8:45pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 10:50am in Zürich (ZRH)

    Layover in Zürich for 1h 0m

    Thu Sep 18th 2025 Swiss International Air Lines · LX 456 Depart at 11:50am from Zürich (ZRH) Fly for 1h 40m Arrive at 12:30pm in London (LCY)

  • US$1057
    Swiss International Air LinesSwiss International Air Lines
    8:45pm - 12:30pm
    Tue Sep 16th 2025
    10h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Tue Sep 16th 2025 Swiss International Air Lines · LX 73 Depart at 8:45pm from Washington, D.C. (IAD) Fly for 8h 5m Arrive at 10:50am in Zürich (ZRH)

    Layover in Zürich for 1h 0m

    Wed Sep 17th 2025 Swiss International Air Lines · LX 456 Depart at 11:50am from Zürich (ZRH) Fly for 1h 40m Arrive at 12:30pm in London (LCY)

  • US$1068
    United AirlinesAir Dolomiti
    10:15pm - 4:25pm
    Wed Sep 17th 2025
    13h 10m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Wed Sep 17th 2025 United Airlines · UA 932 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 55m Arrive at 12:10pm in Frankfurt (FRA)

    Layover in Frankfurt for 3h 50m

    Thu Sep 18th 2025 Air Dolomiti · EN 8776 Depart at 4:00pm from Frankfurt (FRA) Fly for 1h 25m Arrive at 4:25pm in London (LCY)

  • US$1068
    United AirlinesAir Dolomiti
    10:15pm - 4:25pm
    Tue Sep 16th 2025
    13h 10m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Tue Sep 16th 2025 United Airlines · UA 932 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 55m Arrive at 12:10pm in Frankfurt (FRA)

    Layover in Frankfurt for 3h 50m

    Wed Sep 17th 2025 Air Dolomiti · EN 8776 Depart at 4:00pm from Frankfurt (FRA) Fly for 1h 25m Arrive at 4:25pm in London (LCY)

  • US$1078
    United AirlinesAir Dolomiti
    10:15pm - 4:25pm
    Thu Sep 11th 2025
    13h 10m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Thu Sep 11th 2025 United Airlines · UA 932 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 55m Arrive at 12:10pm in Frankfurt (FRA)

    Layover in Frankfurt for 3h 50m

    Fri Sep 12th 2025 Air Dolomiti · EN 8776 Depart at 4:00pm from Frankfurt (FRA) Fly for 1h 25m Arrive at 4:25pm in London (LCY)

  • US$1118
    Virgin Atlantic AirwaysVirgin Atlantic Airways
    5:25pm - 8:10am
    Tue Sep 16th 2025
    9h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Tue Sep 16th 2025 Virgin Atlantic Airways · VS 7120 Depart at 5:25pm from Washington, D.C. (IAD) Fly for 7h 45m Arrive at 7:10am in Amsterdam (AMS)

    Layover in Amsterdam for 0h 55m

    Wed Sep 17th 2025 Virgin Atlantic Airways · VS 7042 Depart at 8:05am from Amsterdam (AMS) Fly for 1h 5m Arrive at 8:10am in London (LCY)

  • US$1119
    Virgin Atlantic AirwaysVirgin Atlantic Airways
    5:25pm - 8:10am
    Wed Sep 17th 2025
    9h 45m
    Washington, D.C. (IAD) → London (LCY)
    1 Stop

    Wed Sep 17th 2025 Virgin Atlantic Airways · VS 7120 Depart at 5:25pm from Washington, D.C. (IAD) Fly for 7h 45m Arrive at 7:10am in Amsterdam (AMS)

    Layover in Amsterdam for 0h 55m

    Thu Sep 18th 2025 Virgin Atlantic Airways · VS 7042 Depart at 8:05am from Amsterdam (AMS) Fly for 1h 5m Arrive at 8:10am in London (LCY)

@sarahbb1
Sarah Belizaire
@sarahbb1

Have flexible travel plans or looking for alternative routes given the chaos? Check out all the connection possibilities via a super helpful site created by @ismaelyws flightlist.io thanks to @andy_travels for the recommendation #travel #flights

@eyupitsjohn
John Ford
@eyupitsjohn

There seem to be lots of sites launching at the moment that promise to find you cheap flights but not many have the professional finish of Flightlist by @ismaelyws #travel #flights

@oamingsonaa
Roaming Sonaa
@roamingsonaa

For people wanting to maximize their trips, Flightlist is my newest travel hack for uncovering the coolest routes at irresistible prices. No stress, no annoying ads — just seamless flight booking with amazing functionality.

@andy_travels
Andy Travels
@andy_travels

@ismaelyws Just tried out Flightlist for the first time. Really nice idea, well made, and just what I need at the moment 👍

@travelwitbender
Travel With Bender
@travelwitbender

Did you spot my recent article about how to score cheap one way flights? ✈️ FlightList is my new secret tool for discovering cheap routes, within a departure date range. Plus you can also search by country/region for departures & destinations. Powerful! 💪

@travel.with.wes
Wesley Mergard
@travel.with.wes

One useful tool I've found for evaluating different departure and return dates is called FlightList.io. You can quickly scan different travel date ranges, carriers and one way flight options to easily determine the cheapest flight combinations for your trip.

Explore Flight Options

FlightList Blog

Flightlist Interviews 7 Travel Experts On Why They Book One Way Flights
Flightlist Interviews 7 Travel Experts On Why They Book One Way Flights
Why I built FlightList & solved my own problem
Why I Built FlightList & Solved My Own Problem

About FlightList

❝Founded by a remote worker and frequent flyer, who discovered that the best deals come from searching with flexible dates across entire countries or regions. Our streamlined platform strips away the clutter found on typical travel sites, offering a clean interface that focuses solely on finding cost-effective flights. Unlike traditional booking sites, FlightList allows users to search by date ranges and broad destinations, unveiling opportunities that rigid parameters often miss. Our filters let travelers tailor searches to their specific needs, whether they're digital nomads seeking their next adventure or budget-conscious explorers maximizing travel funds. We've made finding cheap flights into a quicker and easier experience, empowering users to discover just how far their budget can take them.❞

Hans Desjarlais, Founder Hans Desjarlais Profile Picture