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Flights from Seattle to Helsinki (SEA to HEL)

Discover alternate routes & cheap one way flights from Seattle to Helsinki (SEA to HEL) within a departure date range.

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  • USD 1200
    CondorFinnair
    6:40pm - 10:50pm
    Sat Mar 15th
    19h 10m
    Seattle (SEA) → Helsinki (HEL)
    1 Stop

    Sat Mar 15th 2025 Condor · DE 2033 Depart at 6:40pm from Seattle (SEA) Fly for 10h 10m Arrive at 12:50pm in Frankfurt (FRA)

    Layover in Frankfurt for 6h 30m

    Sun Mar 16th 2025 Finnair · AY 1416 Depart at 7:20pm from Frankfurt (FRA) Fly for 2h 30m Arrive at 10:50pm in Helsinki (HEL)

  • USD 1200
    CondorFinnair
    6:40pm - 3:05pm
    Sat Mar 15th
    35h 25m
    Seattle (SEA) → Helsinki (HEL)
    1 Stop

    Sat Mar 15th 2025 Condor · DE 2033 Depart at 6:40pm from Seattle (SEA) Fly for 10h 10m Arrive at 12:50pm in Frankfurt (FRA)

    Layover in Frankfurt for 22h 45m

    Mon Mar 17th 2025 Finnair · AY 1412 Depart at 11:35am from Frankfurt (FRA) Fly for 2h 30m Arrive at 3:05pm in Helsinki (HEL)

  • USD 1448
    Air Tahiti NuiFinnair
    2:30pm - 10:45am
    Sat Mar 15th
    35h 15m
    Seattle (SEA) → Helsinki (HEL)
    1 Stop

    Sat Mar 15th 2025 Air Tahiti Nui · TN 58 Depart at 2:30pm from Seattle (SEA) Fly for 9h 30m Arrive at 8:00am in Paris (CDG)

    Layover in Paris for 22h 50m

    Mon Mar 17th 2025 Finnair · AY 1582 Depart at 6:50am from Paris (CDG) Fly for 2h 55m Arrive at 10:45am in Helsinki (HEL)

  • USD 1494
    Air Tahiti NuiFinnair
    2:30pm - 11:00pm
    Sat Mar 15th
    23h 30m
    Seattle (SEA) → Helsinki (HEL)
    1 Stop

    Sat Mar 15th 2025 Air Tahiti Nui · TN 58 Depart at 2:30pm from Seattle (SEA) Fly for 9h 30m Arrive at 8:00am in Paris (CDG)

    Layover in Paris for 10h 55m

    Sun Mar 16th 2025 Finnair · AY 1578 Depart at 6:55pm from Paris (CDG) Fly for 3h 5m Arrive at 11:00pm in Helsinki (HEL)

  • USD 1528
    CondorLufthansa
    6:40pm - 1:00am
    Sat Mar 15th
    21h 20m
    Seattle (SEA) → Helsinki (HEL)
    1 Stop

    Sat Mar 15th 2025 Condor · DE 2033 Depart at 6:40pm from Seattle (SEA) Fly for 10h 10m Arrive at 12:50pm in Frankfurt (FRA)

    Layover in Frankfurt for 8h 40m

    Sun Mar 16th 2025 Lufthansa · LH 854 Depart at 9:30pm from Frankfurt (FRA) Fly for 2h 30m Arrive at 1:00am in Helsinki (HEL)

  • USD 1578
    IcelandairFinnair
    3:35pm - 3:30pm
    Sat Mar 15th
    14h 55m
    Seattle (SEA) → Helsinki (HEL)
    1 Stop

    Sat Mar 15th 2025 Icelandair · FI 680 Depart at 3:35pm from Seattle (SEA) Fly for 7h 40m Arrive at 6:15am in Reykjavik (KEF)

    Layover in Reykjavik for 3h 45m

    Sun Mar 16th 2025 Finnair · AY 992 Depart at 10:00am from Reykjavik (KEF) Fly for 3h 30m Arrive at 3:30pm in Helsinki (HEL)

  • USD 1581
    Air Tahiti NuiFinnair
    2:30pm - 6:55pm
    Sat Mar 15th
    19h 25m
    Seattle (SEA) → Helsinki (HEL)
    1 Stop

    Sat Mar 15th 2025 Air Tahiti Nui · TN 58 Depart at 2:30pm from Seattle (SEA) Fly for 9h 30m Arrive at 8:00am in Paris (CDG)

    Layover in Paris for 7h 5m

    Sun Mar 16th 2025 Finnair · AY 1576 Depart at 3:05pm from Paris (CDG) Fly for 2h 50m Arrive at 6:55pm in Helsinki (HEL)

  • USD 1603
    Iberia AirlinesFinnair
    2:45pm - 6:25pm
    Sat Mar 15th
    18h 40m
    Seattle (SEA) → Helsinki (HEL)
    1 Stop

    Sat Mar 15th 2025 Iberia Airlines · IB 3508 Depart at 2:45pm from Seattle (SEA) Fly for 9h 25m Arrive at 7:10am in London (LHR)

    Layover in London for 6h 25m

    Sun Mar 16th 2025 Finnair · AY 1334 Depart at 1:35pm from London (LHR) Fly for 2h 50m Arrive at 6:25pm in Helsinki (HEL)

  • USD 1645
    Iberia AirlinesFinnair
    2:45pm - 3:15pm
    Sat Mar 15th
    15h 30m
    Seattle (SEA) → Helsinki (HEL)
    1 Stop

    Sat Mar 15th 2025 Iberia Airlines · IB 3508 Depart at 2:45pm from Seattle (SEA) Fly for 9h 25m Arrive at 7:10am in London (LHR)

    Layover in London for 3h 10m

    Sun Mar 16th 2025 Finnair · AY 1332 Depart at 10:20am from London (LHR) Fly for 2h 55m Arrive at 3:15pm in Helsinki (HEL)

  • USD 1645
    British AirwaysFinnair
    7:45pm - 9:05pm
    Sat Mar 15th
    16h 20m
    Seattle (SEA) → Helsinki (HEL)
    1 Stop

    Sat Mar 15th 2025 British Airways · BA 48 Depart at 7:45pm from Seattle (SEA) Fly for 9h 20m Arrive at 12:05pm in London (LHR)

    Layover in London for 4h 10m

    Sun Mar 16th 2025 Finnair · AY 1336 Depart at 4:15pm from London (LHR) Fly for 2h 50m Arrive at 9:05pm in Helsinki (HEL)

  • USD 1645
    British AirwaysFinnair
    7:45pm - 11:00pm
    Sat Mar 15th
    18h 15m
    Seattle (SEA) → Helsinki (HEL)
    1 Stop

    Sat Mar 15th 2025 British Airways · BA 48 Depart at 7:45pm from Seattle (SEA) Fly for 9h 20m Arrive at 12:05pm in London (LHR)

    Layover in London for 6h 5m

    Sun Mar 16th 2025 Finnair · AY 1338 Depart at 6:10pm from London (LHR) Fly for 2h 50m Arrive at 11:00pm in Helsinki (HEL)

  • USD 1645
    Iberia AirlinesFinnair
    2:45pm - 9:05pm
    Sat Mar 15th
    21h 20m
    Seattle (SEA) → Helsinki (HEL)
    1 Stop

    Sat Mar 15th 2025 Iberia Airlines · IB 3508 Depart at 2:45pm from Seattle (SEA) Fly for 9h 25m Arrive at 7:10am in London (LHR)

    Layover in London for 9h 5m

    Sun Mar 16th 2025 Finnair · AY 1336 Depart at 4:15pm from London (LHR) Fly for 2h 50m Arrive at 9:05pm in Helsinki (HEL)

  • USD 1645
    Iberia AirlinesFinnair
    2:45pm - 11:00pm
    Sat Mar 15th
    23h 15m
    Seattle (SEA) → Helsinki (HEL)
    1 Stop

    Sat Mar 15th 2025 Iberia Airlines · IB 3508 Depart at 2:45pm from Seattle (SEA) Fly for 9h 25m Arrive at 7:10am in London (LHR)

    Layover in London for 11h 0m

    Sun Mar 16th 2025 Finnair · AY 1338 Depart at 6:10pm from London (LHR) Fly for 2h 50m Arrive at 11:00pm in Helsinki (HEL)

  • USD 1645
    British AirwaysFinnair
    7:45pm - 12:20pm
    Sat Mar 15th
    31h 35m
    Seattle (SEA) → Helsinki (HEL)
    1 Stop

    Sat Mar 15th 2025 British Airways · BA 48 Depart at 7:45pm from Seattle (SEA) Fly for 9h 20m Arrive at 12:05pm in London (LHR)

    Layover in London for 19h 25m

    Mon Mar 17th 2025 Finnair · AY 1340 Depart at 7:30am from London (LHR) Fly for 2h 50m Arrive at 12:20pm in Helsinki (HEL)

  • USD 1645
    FinnairIberia Airlines
    2:45pm - 12:20pm
    Sat Mar 15th
    36h 35m
    Seattle (SEA) → Helsinki (HEL)
    1 Stop

    Sat Mar 15th 2025 Iberia Airlines · IB 3508 Depart at 2:45pm from Seattle (SEA) Fly for 9h 25m Arrive at 7:10am in London (LHR)

    Layover in London for 24h 20m

    Mon Mar 17th 2025 Finnair · AY 1340 Depart at 7:30am from London (LHR) Fly for 2h 50m Arrive at 12:20pm in Helsinki (HEL)

  • USD 1648
    Air FranceAir Tahiti Nui
    2:30pm - 4:40pm
    Sat Mar 15th
    17h 10m
    Seattle (SEA) → Helsinki (HEL)
    1 Stop

    Sat Mar 15th 2025 Air Tahiti Nui · TN 58 Depart at 2:30pm from Seattle (SEA) Fly for 9h 30m Arrive at 8:00am in Paris (CDG)

    Layover in Paris for 4h 35m

    Sun Mar 16th 2025 Air France · AF 1070 Depart at 12:35pm from Paris (CDG) Fly for 3h 5m Arrive at 4:40pm in Helsinki (HEL)

  • USD 1648
    Air Tahiti NuiAir France
    2:30pm - 11:35pm
    Sat Mar 15th
    24h 5m
    Seattle (SEA) → Helsinki (HEL)
    1 Stop

    Sat Mar 15th 2025 Air Tahiti Nui · TN 58 Depart at 2:30pm from Seattle (SEA) Fly for 9h 30m Arrive at 8:00am in Paris (CDG)

    Layover in Paris for 11h 30m

    Sun Mar 16th 2025 Air France · AF 1176 Depart at 7:30pm from Paris (CDG) Fly for 3h 5m Arrive at 11:35pm in Helsinki (HEL)

  • USD 1693
    FinnairBritish Airways
    7:45pm - 3:15pm
    Sat Mar 15th
    34h 30m
    Seattle (SEA) → Helsinki (HEL)
    1 Stop

    Sat Mar 15th 2025 British Airways · BA 48 Depart at 7:45pm from Seattle (SEA) Fly for 9h 20m Arrive at 12:05pm in London (LHR)

    Layover in London for 22h 15m

    Mon Mar 17th 2025 Finnair · AY 1332 Depart at 10:20am from London (LHR) Fly for 2h 55m Arrive at 3:15pm in Helsinki (HEL)

  • USD 1694
    Turkish Airlines
    7:00pm - 11:40am
    Sat Mar 15th
    31h 40m
    Seattle (SEA) → Helsinki (HEL)
    1 Stop

    Sat Mar 15th 2025 Turkish Airlines · TK 204 Depart at 7:00pm from Seattle (SEA) Fly for 13h 0m Arrive at 6:00pm in Istanbul (IST)

    Layover in Istanbul for 14h 50m

    Mon Mar 17th 2025 Turkish Airlines · TK 1761 Depart at 8:50am from Istanbul (IST) Fly for 3h 50m Arrive at 11:40am in Helsinki (HEL)

  • USD 1694
    Turkish Airlines
    7:00pm - 6:05pm
    Sat Mar 15th
    38h 5m
    Seattle (SEA) → Helsinki (HEL)
    1 Stop

    Sat Mar 15th 2025 Turkish Airlines · TK 204 Depart at 7:00pm from Seattle (SEA) Fly for 13h 0m Arrive at 6:00pm in Istanbul (IST)

    Layover in Istanbul for 21h 15m

    Mon Mar 17th 2025 Turkish Airlines · TK 1763 Depart at 3:15pm from Istanbul (IST) Fly for 3h 50m Arrive at 6:05pm in Helsinki (HEL)

  • USD 1911
    Alaska AirlinesFinnair
    2:20pm - 1:55pm
    Sat Mar 15th
    38h 35m
    Seattle (SEA) → Helsinki (HEL)
    1 Stop

    Sat Mar 15th 2025 Alaska Airlines · AS 16 Depart at 2:20pm from Seattle (SEA) Fly for 5h 34m Arrive at 10:54pm in New York (JFK)

    Layover in New York for 24h 51m

    Sun Mar 16th 2025 Finnair · AY 16 Depart at 11:45pm from New York (JFK) Fly for 8h 10m Arrive at 1:55pm in Helsinki (HEL)

  • USD 1913
    Alaska AirlinesFinnair
    9:50pm - 1:55pm
    Sat Mar 15th
    31h 5m
    Seattle (SEA) → Helsinki (HEL)
    1 Stop

    Sat Mar 15th 2025 Alaska Airlines · AS 22 Depart at 9:50pm from Seattle (SEA) Fly for 5h 10m Arrive at 6:00am in New York (JFK)

    Layover in New York for 17h 45m

    Sun Mar 16th 2025 Finnair · AY 16 Depart at 11:45pm from New York (JFK) Fly for 8h 10m Arrive at 1:55pm in Helsinki (HEL)

  • USD 1992
    Alaska AirlinesFinnair
    7:55pm - 3:20pm
    Sat Mar 15th
    34h 25m
    Seattle (SEA) → Helsinki (HEL)
    1 Stop

    Sat Mar 15th 2025 Alaska Airlines · AS 1224 Depart at 7:55pm from Seattle (SEA) Fly for 2h 40m Arrive at 10:35pm in Los Angeles (LAX)

    Layover in Los Angeles for 21h 15m

    Sun Mar 16th 2025 Finnair · AY 2 Depart at 7:50pm from Los Angeles (LAX) Fly for 10h 30m Arrive at 3:20pm in Helsinki (HEL)

  • USD 1992
    FinnairAlaska Airlines
    6:05pm - 3:20pm
    Sat Mar 15th
    36h 15m
    Seattle (SEA) → Helsinki (HEL)
    1 Stop

    Sat Mar 15th 2025 Alaska Airlines · AS 1054 Depart at 6:05pm from Seattle (SEA) Fly for 2h 40m Arrive at 8:45pm in Los Angeles (LAX)

    Layover in Los Angeles for 23h 5m

    Sun Mar 16th 2025 Finnair · AY 2 Depart at 7:50pm from Los Angeles (LAX) Fly for 10h 30m Arrive at 3:20pm in Helsinki (HEL)

  • USD 1992
    Alaska AirlinesFinnair
    5:00pm - 3:20pm
    Sat Mar 15th
    37h 20m
    Seattle (SEA) → Helsinki (HEL)
    1 Stop

    Sat Mar 15th 2025 Alaska Airlines · AS 1214 Depart at 5:00pm from Seattle (SEA) Fly for 2h 41m Arrive at 7:41pm in Los Angeles (LAX)

    Layover in Los Angeles for 24h 9m

    Sun Mar 16th 2025 Finnair · AY 2 Depart at 7:50pm from Los Angeles (LAX) Fly for 10h 30m Arrive at 3:20pm in Helsinki (HEL)

  • USD 1993
    Alaska AirlinesFinnair
    9:15pm - 3:20pm
    Sat Mar 15th
    33h 5m
    Seattle (SEA) → Helsinki (HEL)
    1 Stop

    Sat Mar 15th 2025 Alaska Airlines · AS 1292 Depart at 9:15pm from Seattle (SEA) Fly for 2h 39m Arrive at 11:54pm in Los Angeles (LAX)

    Layover in Los Angeles for 19h 56m

    Sun Mar 16th 2025 Finnair · AY 2 Depart at 7:50pm from Los Angeles (LAX) Fly for 10h 30m Arrive at 3:20pm in Helsinki (HEL)

  • USD 2113
    Alaska AirlinesFinnair
    7:35am - 1:55pm
    Sat Mar 15th
    21h 20m
    Seattle (SEA) → Helsinki (HEL)
    1 Stop

    Sat Mar 15th 2025 Alaska Airlines · AS 34 Depart at 7:35am from Seattle (SEA) Fly for 5h 34m Arrive at 4:09pm in New York (JFK)

    Layover in New York for 7h 36m

    Sat Mar 15th 2025 Finnair · AY 16 Depart at 11:45pm from New York (JFK) Fly for 8h 10m Arrive at 1:55pm in Helsinki (HEL)

  • USD 2582
    Air FranceFinnair
    5:20pm - 6:55pm
    Sat Mar 15th
    16h 35m
    Seattle (SEA) → Helsinki (HEL)
    1 Stop

    Sat Mar 15th 2025 Air France · AF 367 Depart at 5:20pm from Seattle (SEA) Fly for 9h 30m Arrive at 10:50am in Paris (CDG)

    Layover in Paris for 4h 15m

    Sun Mar 16th 2025 Finnair · AY 1576 Depart at 3:05pm from Paris (CDG) Fly for 2h 50m Arrive at 6:55pm in Helsinki (HEL)

  • USD 2754
    Alaska AirlinesIberia Airlines
    7:15am - 10:40am
    Sat Mar 15th
    18h 25m
    Seattle (SEA) → Helsinki (HEL)
    1 Stop

    Sat Mar 15th 2025 Alaska Airlines · AS 305 Depart at 7:15am from Seattle (SEA) Fly for 6h 0m Arrive at 4:15pm in Miami (MIA)

    Layover in Miami for 3h 0m

    Sat Mar 15th 2025 Iberia Airlines · IB 6421 Depart at 7:15pm from Miami (MIA) Fly for 9h 25m Arrive at 10:40am in Helsinki (HEL)

  • USD 2951
    Lufthansa
    2:50pm - 4:55pm
    Sat Mar 15th
    17h 5m
    Seattle (SEA) → Helsinki (HEL)
    1 Stop

    Sat Mar 15th 2025 Lufthansa · LH 491 Depart at 2:50pm from Seattle (SEA) Fly for 10h 10m Arrive at 9:00am in Frankfurt (FRA)

    Layover in Frankfurt for 4h 25m

    Sun Mar 16th 2025 Lufthansa · LH 850 Depart at 1:25pm from Frankfurt (FRA) Fly for 2h 30m Arrive at 4:55pm in Helsinki (HEL)

@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

@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! 💪

Explore Flight Options

Cheap Flight Search Tips

Tips to help you find the cheapest flights from Seattle to Helsinki (SEA to HEL).

  • Book 45-90 days before your departure date.
  • Fly during weekdays (Monday-Thursday).
  • Airfare Sales: Airlines sometimes offer huge discounts and since we take a bottom-up approach these flights will appear first in the results, so check back regularly because they don't usually last long.

Why I Built FlightList

❝As someone who works remotely & travels frequently, I always book one way flights and I'm flexible on my departure dates. I look for the best deals. Most sites require you to enter a specific departure date and clutter the page with uneccessary options, images and ads. I want something simple and minimal which allows me to search by departure date range & display a list of flights with the ability to filter according to my needs. So, I built FlightList to solve my own problem & help other travelers who may have the same frustration. It's how I imagine a flight booking site should be.❞

- Hans Desjarlais, Founder & Creator Hans Desjarlais