Flights from Philadelphia to Porto (PHL to OPO)

Discover more affordable routes and cheaper dates from Philadelphia to Porto (PHL to OPO) within a date range.

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  • US$1214
    United AirlinesUnited Airlines
    5:35pm - 11:15am
    Sun Jun 1st 2025
    12h 40m
    Philadelphia (PHL) → Porto (OPO)
    1 Stop
    United AirlinesUnited Airlines
    6:00am - 4:00pm
    Wed Jun 11th 2025
    15h 0m
    Porto (OPO) → Philadelphia (PHL)
    1 Stop

    Sun Jun 1st 2025 United Airlines · UA 9657 Depart at 5:35pm from Philadelphia (PHL) Fly for 7h 55m Arrive at 7:30am in Frankfurt (FRA)

    Layover in Frankfurt for 1h 55m

    Mon Jun 2nd 2025 United Airlines · UA 8872 Depart at 9:25am from Frankfurt (FRA) Fly for 2h 50m Arrive at 11:15am in Porto (OPO)

    Stay in Porto for 8 nights

    Wed Jun 11th 2025 United Airlines · UA 9004 Depart at 6:00am from Porto (OPO) Fly for 2h 45m Arrive at 9:45am in Frankfurt (FRA)

    Layover in Frankfurt for 3h 25m

    Wed Jun 11th 2025 United Airlines · UA 9658 Depart at 1:10pm from Frankfurt (FRA) Fly for 8h 50m Arrive at 4:00pm in Philadelphia (PHL)

  • US$1290
    United AirlinesUnited Airlines
    3:20pm - 9:35am
    Mon Jun 16th 2025
    13h 15m
    Philadelphia (PHL) → Porto (OPO)
    1 Stop
    United AirlinesUnited Airlines
    6:00am - 4:00pm
    Mon Jun 30th 2025
    15h 0m
    Porto (OPO) → Philadelphia (PHL)
    1 Stop

    Mon Jun 16th 2025 United Airlines · UA 6616 Depart at 3:20pm from Philadelphia (PHL) Fly for 1h 40m Arrive at 5:00pm in Montreal (YUL)

    Layover in Montreal for 5h 0m

    Mon Jun 16th 2025 United Airlines · UA 8113 Depart at 10:00pm from Montreal (YUL) Fly for 6h 35m Arrive at 9:35am in Porto (OPO)

    Stay in Porto for 12 nights

    Mon Jun 30th 2025 United Airlines · UA 9004 Depart at 6:00am from Porto (OPO) Fly for 2h 45m Arrive at 9:45am in Frankfurt (FRA)

    Layover in Frankfurt for 3h 25m

    Mon Jun 30th 2025 United Airlines · UA 9658 Depart at 1:10pm from Frankfurt (FRA) Fly for 8h 50m Arrive at 4:00pm in Philadelphia (PHL)

  • US$1751
    TAP PortugalTAP Portugal
    5:30pm - 10:35am
    Sun Jun 1st 2025
    12h 5m
    Philadelphia (PHL) → Porto (OPO)
    1 Stop
    Air CanadaAir Canada
    12:50pm - 10:06pm
    Tue Jun 10th 2025
    14h 16m
    Porto (OPO) → Philadelphia (PHL)
    1 Stop

    Sun Jun 1st 2025 TAP Portugal · TP 4350 Depart at 5:30pm from Philadelphia (PHL) Fly for 1h 25m Arrive at 6:55pm in Boston (BOS)

    Layover in Boston for 4h 0m

    Sun Jun 1st 2025 TAP Portugal · TP 228 Depart at 10:55pm from Boston (BOS) Fly for 6h 40m Arrive at 10:35am in Porto (OPO)

    Stay in Porto for 8 nights

    Tue Jun 10th 2025 Air Canada · AC 929 Depart at 12:50pm from Porto (OPO) Fly for 7h 25m Arrive at 3:15pm in Montreal (YUL)

    Layover in Montreal for 5h 15m

    Tue Jun 10th 2025 Air Canada · AC 8863 Depart at 8:30pm from Montreal (YUL) Fly for 1h 36m Arrive at 10:06pm in Philadelphia (PHL)

  • US$1751
    TAP PortugalTAP Portugal
    5:30pm - 10:55am
    Mon Jun 2nd 2025
    12h 25m
    Philadelphia (PHL) → Porto (OPO)
    1 Stop
    Air CanadaAir Canada
    12:50pm - 10:06pm
    Tue Jun 10th 2025
    14h 16m
    Porto (OPO) → Philadelphia (PHL)
    1 Stop

    Mon Jun 2nd 2025 TAP Portugal · TP 4350 Depart at 5:30pm from Philadelphia (PHL) Fly for 1h 25m Arrive at 6:55pm in Boston (BOS)

    Layover in Boston for 4h 20m

    Mon Jun 2nd 2025 TAP Portugal · TP 228 Depart at 11:15pm from Boston (BOS) Fly for 6h 40m Arrive at 10:55am in Porto (OPO)

    Stay in Porto for 7 nights

    Tue Jun 10th 2025 Air Canada · AC 929 Depart at 12:50pm from Porto (OPO) Fly for 7h 25m Arrive at 3:15pm in Montreal (YUL)

    Layover in Montreal for 5h 15m

    Tue Jun 10th 2025 Air Canada · AC 8863 Depart at 8:30pm from Montreal (YUL) Fly for 1h 36m Arrive at 10:06pm in Philadelphia (PHL)

  • US$1751
    TAP PortugalTAP Portugal
    5:30pm - 10:35am
    Sun Jun 1st 2025
    12h 5m
    Philadelphia (PHL) → Porto (OPO)
    1 Stop
    Air CanadaAir Canada
    12:10pm - 10:06pm
    Thu Jun 5th 2025
    14h 56m
    Porto (OPO) → Philadelphia (PHL)
    1 Stop

    Sun Jun 1st 2025 TAP Portugal · TP 4350 Depart at 5:30pm from Philadelphia (PHL) Fly for 1h 25m Arrive at 6:55pm in Boston (BOS)

    Layover in Boston for 4h 0m

    Sun Jun 1st 2025 TAP Portugal · TP 228 Depart at 10:55pm from Boston (BOS) Fly for 6h 40m Arrive at 10:35am in Porto (OPO)

    Stay in Porto for 3 nights

    Thu Jun 5th 2025 Air Canada · AC 929 Depart at 12:10pm from Porto (OPO) Fly for 7h 25m Arrive at 2:35pm in Montreal (YUL)

    Layover in Montreal for 5h 55m

    Thu Jun 5th 2025 Air Canada · AC 8863 Depart at 8:30pm from Montreal (YUL) Fly for 1h 36m Arrive at 10:06pm in Philadelphia (PHL)

  • US$1751
    TAP PortugalTAP Portugal
    5:30pm - 10:55am
    Mon Jun 2nd 2025
    12h 25m
    Philadelphia (PHL) → Porto (OPO)
    1 Stop
    Air CanadaAir Canada
    12:10pm - 10:06pm
    Thu Jun 5th 2025
    14h 56m
    Porto (OPO) → Philadelphia (PHL)
    1 Stop

    Mon Jun 2nd 2025 TAP Portugal · TP 4350 Depart at 5:30pm from Philadelphia (PHL) Fly for 1h 25m Arrive at 6:55pm in Boston (BOS)

    Layover in Boston for 4h 20m

    Mon Jun 2nd 2025 TAP Portugal · TP 228 Depart at 11:15pm from Boston (BOS) Fly for 6h 40m Arrive at 10:55am in Porto (OPO)

    Stay in Porto for 2 nights

    Thu Jun 5th 2025 Air Canada · AC 929 Depart at 12:10pm from Porto (OPO) Fly for 7h 25m Arrive at 2:35pm in Montreal (YUL)

    Layover in Montreal for 5h 55m

    Thu Jun 5th 2025 Air Canada · AC 8863 Depart at 8:30pm from Montreal (YUL) Fly for 1h 36m Arrive at 10:06pm in Philadelphia (PHL)

  • US$1797
    TAP PortugalTAP Portugal
    6:10pm - 10:55am
    Sat Jun 7th 2025
    11h 45m
    Philadelphia (PHL) → Porto (OPO)
    1 Stop
    Air CanadaAir Canada
    12:50pm - 10:06pm
    Tue Jun 10th 2025
    14h 16m
    Porto (OPO) → Philadelphia (PHL)
    1 Stop

    Sat Jun 7th 2025 TAP Portugal · TP 4350 Depart at 6:10pm from Philadelphia (PHL) Fly for 1h 25m Arrive at 7:35pm in Boston (BOS)

    Layover in Boston for 3h 40m

    Sat Jun 7th 2025 TAP Portugal · TP 228 Depart at 11:15pm from Boston (BOS) Fly for 6h 40m Arrive at 10:55am in Porto (OPO)

    Stay in Porto for 2 nights

    Tue Jun 10th 2025 Air Canada · AC 929 Depart at 12:50pm from Porto (OPO) Fly for 7h 25m Arrive at 3:15pm in Montreal (YUL)

    Layover in Montreal for 5h 15m

    Tue Jun 10th 2025 Air Canada · AC 8863 Depart at 8:30pm from Montreal (YUL) Fly for 1h 36m Arrive at 10:06pm in Philadelphia (PHL)

@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