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Cheap flight deals from Seattle to Porto Starting at PHP 20,518

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

  • One way
  • Round-trip
      • SEA11:48 pm
        27h 7m
        1 stop
        OPO10:55 am
        Sun, Mar 2|Seattle - Porto|Jetblue Airways
        PHP 20,518PHP 28,694
        28% OFF
        28% OFF
        PHP 28,694PHP 20,518

        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 PHP 20,518 including taxes and charges.

      • SEA11:30 pm
        27h 25m
        1 stop
        OPO10:55 am
        Sun, Mar 2|Seattle - Porto|Alaska Airlines
        PHP 22,693PHP 28,694
        21% OFF
        21% OFF
        PHP 28,694PHP 22,693

        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 PHP 22,693 including taxes and charges.

      • SEA02:21 pm
        38h 34m
        1 stop
        OPO11:55 am
        Thu, Mar 13|Seattle - Porto|Alaska Airlines
        PHP 22,733PHP 28,694
        21% OFF
        21% OFF
        PHP 28,694PHP 22,733

        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 PHP 22,733 including taxes and charges.

      • SEA07:18 am
        15h 47m
        1 stop
        OPO07:05 am
        Sat, Feb 22|Seattle - Porto|Alaska Airlines
        PHP 23,586
        PHP 23,586

        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 PHP 23,586 including taxes and charges.

      • SEA07:18 am
        15h 47m
        1 stop
        OPO07:05 am
        Sat, Mar 1|Seattle - Porto|Alaska Airlines
        PHP 24,263
        PHP 24,263

        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 PHP 24,263 including taxes and charges.

      • SEA06:15 am
        22h 40m
        1 stop
        OPO11:55 am
        Sun, Mar 9|Seattle - Porto|Alaska Airlines
        PHP 24,367
        PHP 24,367

        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 PHP 24,367 including taxes and charges.

      • SEA06:15 am
        21h 35m
        1 stop
        OPO11:50 am
        Tue, Feb 25|Seattle - Porto|Alaska Airlines
        PHP 24,382
        PHP 24,382

        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 PHP 24,382 including taxes and charges.

      • SEA07:30 am
        21h 20m
        1 stop
        OPO11:50 am
        Fri, Mar 28|Seattle - Porto|Delta Air Lines
        PHP 24,406
        PHP 24,406

        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 PHP 24,406 including taxes and charges.

      • SEA06:15 am
        21h 35m
        1 stop
        OPO11:50 am
        Mon, Mar 3|Seattle - Porto|Alaska Airlines
        PHP 24,422
        PHP 24,422

        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 PHP 24,422 including taxes and charges.

      • SEA07:15 am
        16h 50m
        1 stop
        OPO07:05 am
        Wed, Mar 19|Seattle - Porto|Alaska Airlines
        PHP 24,741
        PHP 24,741

        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 PHP 24,741 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 info.
Departure
Arrival
Weekly Schedule

  1. LH491

    Lufthansa

    02:20 pm

    SEA

    9.6h

    08:55 am

    FRA

    S-TWTF-
    Search

  2. LH1178

    Lufthansa

    01:55 pm

    FRA

    2.8h

    03:45 pm

    OPO

    SMT--FS

  3. FI680

    Icelandair

    03:45 pm

    SEA

    7.5h

    06:15 am

    KEF

    SMTWTFS
    Search

  4. FI470

    Icelandair

    07:40 am

    KEF

    3.3h

    10:55 am

    LGW

    SMTWTFS

  5. U28523

    easyJet

    04:35 pm

    LGW

    2.5h

    07:05 pm

    OPO

    -M-W-F-

  6. FI680

    Icelandair

    03:45 pm

    SEA

    7.5h

    06:15 am

    KEF

    SMTWTFS
    Search

  7. FI470

    Icelandair

    07:40 am

    KEF

    3.3h

    10:55 am

    LGW

    SMTWTFS

  8. BA2666

    British Airways

    02:15 pm

    LGW

    2.4h

    04:40 pm

    OPO

    SMTWT-S

  9. VS106

    Virgin Atlantic

    05:35 pm

    SEA

    9.8h

    11:25 am

    LHR

    SMTWTFS
    Search

  10. U26311

    easyJet

    06:05 pm

    LGW

    2.6h

    08:40 pm

    OPO

    ------S

  11. AS972

    Alaska Airlines

    07:23 am

    SEA

    4.6h

    03:00 pm

    YYZ

    SMTWTFS
    Search

  12. TP258

    TAP Air Portugal

    05:40 pm

    YYZ

    7.4h

    06:05 am

    LIS

    -M-W--S

  13. TP1922

    TAP Air Portugal

    08:05 am

    LIS

    1.1h

    09:10 am

    OPO

    SMTWTFS

  14. AS972

    Alaska Airlines

    07:23 am

    SEA

    4.6h

    03:00 pm

    YYZ

    SMTWTFS
    Search

  15. TS764

    Air Transat

    11:55 pm

    YYZ

    6.8h

    11:45 am

    OPO

    -----F-

  16. UA2398

    United Airlines

    08:10 am

    SEA

    5.1h

    04:18 pm

    IAD

    SMTWT--
    Search

  17. UA748

    United Airlines

    05:20 pm

    IAD

    8.3h

    07:40 am

    GVA

    S--WTFS

  18. U27736

    easyJet

    10:05 am

    GVA

    2.3h

    11:25 am

    OPO

    SMTWTFS

  19. BA048

    British Airways

    08:20 pm

    SEA

    9.3h

    01:40 pm

    LHR

    S-TWTFS
    Search

  20. BA722

    British Airways

    02:05 pm

    LHR

    1.8h

    04:50 pm

    GVA

    SMTWTFS

  21. U27742

    easyJet

    09:10 pm

    GVA

    2.4h

    10:35 pm

    OPO

    SMTWTF-

  22. IB3506

    Iberia

    08:20 pm

    SEA

    9.3h

    01:40 pm

    LHR

    S-TWTFS
    Search

  23. U26311

    easyJet

    06:05 pm

    LGW

    2.6h

    08:40 pm

    OPO

    ------S

  24. IB3506

    Iberia

    08:20 pm

    SEA

    9.3h

    01:40 pm

    LHR

    S-TWTFS
    Search

  25. BA2666

    British Airways

    02:15 pm

    LGW

    2.4h

    04:40 pm

    OPO

    SMTWT-S
Find more flights and airlines

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

We monitor flight fares to help you find the best deals effortlessly

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 departure date and time of your selection. By analyzing data from all airlines, we've discovered that 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 PHP 67,035.

  • 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. It takes about 20 minutes by taxi.

How to find a cheap flight from Seattle to Porto

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Seattle to Porto. Book your flights at the right time and save more.
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 nonstop flight pricePHP 20,517
Off-season for travelJanuary
Peak season for travelMay
Flight distance8,187.39 km
Popular airlineTurkish Airlines

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