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Cheap flight deals from Seattle to Porto Starting at AED 1,303

Discover our range of affordable one-way and round-trip flights from Seattle to Porto and kick-start your next adventure today!

  • One way
  • Round-trip
      • SEA23:48
        27h 7m
        1 stop
        OPO10:55
        Sun, Mar 2|Seattle - Porto|Jetblue Airways
        AED 1,303AED 1,828
        28% OFF
        28% OFF
        AED 1,828AED 1,303

        Choose Jetblue Airways flights from Seattle to Porto. The one-way connecting flight with Jetblue Airways departs from Seattle-Tacoma International Airport on Sun, Mar 2, arriving at Francisco Sa Carneiro International Airport. One-way Prices start from AED 1,303 including taxes and charges.

      • SEA23:30
        27h 25m
        1 stop
        OPO10:55
        Sun, Mar 2|Seattle - Porto|Alaska Airlines
        AED 1,441AED 1,828
        21% OFF
        21% OFF
        AED 1,828AED 1,441

        Choose Alaska Airlines flights from Seattle to Porto. The one-way connecting flight with Alaska Airlines departs from Seattle-Tacoma International Airport on Sun, Mar 2, arriving at Francisco Sa Carneiro International Airport. One-way Prices start from AED 1,441 including taxes and charges.

      • SEA14:21
        38h 34m
        1 stop
        OPO11:55
        Thu, Mar 13|Seattle - Porto|Alaska Airlines
        AED 1,444AED 1,828
        21% OFF
        21% OFF
        AED 1,828AED 1,444

        Choose Alaska Airlines flights from Seattle to Porto. The one-way connecting flight with Alaska Airlines departs from Seattle-Tacoma International Airport on Thu, Mar 13, arriving at Francisco Sa Carneiro International Airport. One-way Prices start from AED 1,444 including taxes and charges.

      • SEA07:18
        15h 47m
        1 stop
        OPO07:05
        Sat, Feb 22|Seattle - Porto|Alaska Airlines
        AED 1,498
        AED 1,498

        Choose Alaska Airlines flights from Seattle to Porto. The one-way connecting flight with Alaska Airlines departs from Seattle-Tacoma International Airport on Sat, Feb 22, arriving at Francisco Sa Carneiro International Airport. One-way Prices start from AED 1,498 including taxes and charges.

      • SEA07:18
        15h 47m
        1 stop
        OPO07:05
        Sat, Mar 1|Seattle - Porto|Alaska Airlines
        AED 1,541
        AED 1,541

        Choose Alaska Airlines flights from Seattle to Porto. The one-way connecting flight with Alaska Airlines departs from Seattle-Tacoma International Airport on Sat, Mar 1, arriving at Francisco Sa Carneiro International Airport. One-way Prices start from AED 1,541 including taxes and charges.

      • SEA06:15
        22h 40m
        1 stop
        OPO11:55
        Sun, Mar 9|Seattle - Porto|Alaska Airlines
        AED 1,548
        AED 1,548

        Choose Alaska Airlines flights from Seattle to Porto. The one-way connecting flight with Alaska Airlines departs from Seattle-Tacoma International Airport on Sun, Mar 9, arriving at Francisco Sa Carneiro International Airport. One-way Prices start from AED 1,548 including taxes and charges.

      • SEA06:15
        21h 35m
        1 stop
        OPO11:50
        Tue, Feb 25|Seattle - Porto|Alaska Airlines
        AED 1,549
        AED 1,549

        Choose Alaska Airlines flights from Seattle to Porto. The one-way connecting flight with Alaska Airlines departs from Seattle-Tacoma International Airport on Tue, Feb 25, arriving at Francisco Sa Carneiro International Airport. One-way Prices start from AED 1,549 including taxes and charges.

      • SEA07:30
        21h 20m
        1 stop
        OPO11:50
        Fri, Mar 28|Seattle - Porto|Delta Air Lines
        AED 1,550
        AED 1,550

        Choose Delta Air Lines flights from Seattle to Porto. The one-way connecting flight with Delta Air Lines departs from Seattle-Tacoma International Airport on Fri, Mar 28, arriving at Francisco Sa Carneiro International Airport. One-way Prices start from AED 1,550 including taxes and charges.

      • SEA06:15
        21h 35m
        1 stop
        OPO11:50
        Mon, Mar 3|Seattle - Porto|Alaska Airlines
        AED 1,551
        AED 1,551

        Choose Alaska Airlines flights from Seattle to Porto. The one-way connecting flight with Alaska Airlines departs from Seattle-Tacoma International Airport on Mon, Mar 3, arriving at Francisco Sa Carneiro International Airport. One-way Prices start from AED 1,551 including taxes and charges.

      • SEA07:15
        16h 50m
        1 stop
        OPO07:05
        Wed, Mar 19|Seattle - Porto|Alaska Airlines
        AED 1,572
        AED 1,572

        Choose Alaska Airlines flights from Seattle to Porto. The one-way connecting flight with Alaska Airlines departs from Seattle-Tacoma International Airport on Wed, Mar 19, arriving at Francisco Sa Carneiro International Airport. One-way Prices start from AED 1,572 including taxes and charges.

      • SEA01:00 pm
        3h 5m
        Nonstop
        OPO02:00 pm
        Sun, Feb 23|Seattle - Porto|Jetblue Airways
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Seattle to Porto flight time & flight schedules

Flight info.
Departure
Arrival
Weekly Schedule

  1. AS972

    Alaska Airlines

    07:23

    SEA

    4.6h

    15:00

    YYZ

    SMTWTFS
    Search

  2. TP258

    TAP Air Portugal

    17:40

    YYZ

    7.3h

    05:55

    LIS

    -M-W--S

  3. TP1922

    TAP Air Portugal

    08:05

    LIS

    0.9h

    09:00

    OPO

    SMTWTFS

  4. AS972

    Alaska Airlines

    07:23

    SEA

    4.6h

    15:00

    YYZ

    SMTWTFS
    Search

  5. TS764

    Air Transat

    19:10

    YYZ

    6.9h

    07:05

    OPO

    -----F-

  6. UA2398

    United Airlines

    08:10

    SEA

    5.1h

    16:18

    IAD

    SMTWT--
    Search

  7. UA748

    United Airlines

    17:20

    IAD

    8.3h

    07:40

    GVA

    S--WTFS

  8. U27736

    easyJet

    10:15

    GVA

    2.3h

    11:35

    OPO

    SMTWTFS

  9. AS306

    Alaska Airlines

    08:13

    SEA

    5.5h

    16:45

    BOS

    SMTWTFS
    Search

  10. S4270

    Azores Airlines

    22:20

    BOS

    9.5h

    11:50

    OPO

    ----T--

  11. LH491

    Lufthansa

    14:20

    SEA

    9.6h

    08:55

    FRA

    S-TWTF-
    Search

  12. LH1178

    Lufthansa

    13:55

    FRA

    2.8h

    15:45

    OPO

    SMT--FS

  13. FI680

    Icelandair

    15:45

    SEA

    7.5h

    06:15

    KEF

    SMTWTFS
    Search

  14. FI470

    Icelandair

    07:35

    KEF

    3.2h

    11:45

    LGW

    SMTWTFS

  15. U28523

    easyJet

    05:20

    LGW

    2.4h

    07:45

    OPO

    -M-W-F-

  16. FI680

    Icelandair

    15:45

    SEA

    7.5h

    06:15

    KEF

    SMTWTFS
    Search

  17. FI470

    Icelandair

    07:35

    KEF

    3.2h

    11:45

    LGW

    SMTWTFS

  18. BA2666

    British Airways

    14:15

    LGW

    2.4h

    16:40

    OPO

    SMTWT-S

  19. BA048

    British Airways

    20:20

    SEA

    9.3h

    13:40

    LHR

    S-TWTFS
    Search

  20. BA722

    British Airways

    14:05

    LHR

    1.8h

    16:50

    GVA

    SMTWTFS

  21. U27742

    easyJet

    20:50

    GVA

    2.4h

    22:15

    OPO

    SMTWTF-

  22. IB3506

    Iberia

    20:20

    SEA

    9.3h

    13:40

    LHR

    S-TWTFS
    Search

  23. U26311

    easyJet

    18:05

    LGW

    2.6h

    20:40

    OPO

    ------S

  24. IB3506

    Iberia

    20:20

    SEA

    9.3h

    13:40

    LHR

    S-TWTFS
    Search

  25. BA2666

    British Airways

    14:15

    LGW

    2.4h

    16:40

    OPO

    SMTWT-S
Find more flights and airlines

When is the cheapest time to fly from Seattle to Porto?

Price trend charts are a great way of tracking how much your flights cost in the lead up to departure and can help you choose when to book your tickets. See how prices to Porto from Seattle have changed and are set to move below.

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • When are flight tickets from Seattle (SEA) to Porto (OPO) the cheapest?

    Airlines adjust prices for flights from Seattle to Porto based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Seattle (SEA) to Porto (OPO) cost?

    According to Trip.com's data, the lowest price is around AED 4,258.

  • What is the transportation method from the main airport to downtown in Porto?

    • The distance from Francisco Sa Carneiro International Airport to downtown is about 9 km, by taxi about 20 minutes.

  • How many airports are there in Porto (OPO)?

    There are 1 airport(s) near Porto (OPO): Francisco Sa Carneiro International Airport.

How to find a cheap flight from Seattle to Porto

If you leave it until the last minute and forget to check some of the key information when booking tickets, prices can often end up skyrocketing. Below, you can find our top tips for getting the best value flights – from changing dates to chasing deals, there are plenty ways to keep your next trip affordable.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Info | Seattle to Porto

Cheapest direct flight priceAED 1,303
Off-season for travelJanuary
Peak season for travelMay
Flight distance8,187.39 km
Popular airlineTurkish Airlines

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