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Seattle-Tacoma International Airport to London flight
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Cheap Flights from Seattle-Tacoma International Airport to London

Search for flights from Seattle-Tacoma International Airport to London and check out affordable one-way and round-trip options.

  • One way
  • Round-trip
sortSort: Price (Lowest)
  • Sort: Price (Lowest)
  • Sort: Departure (Earliest)
      • SEA07:00
        21h 5m
        1 stop
        LHR12:05
        Seattle - London|Sun, May 19|WestJet
        CAD 276CAD 524
        47% OFF
        47% OFF
        CAD 524CAD 276
      • SEA23:38
        29h 52m
        1 stop
        LGW13:30
        Seattle - London|Fri, May 3|Alaska Airlines
        CAD 345CAD 524
        34% OFF
        34% OFF
        CAD 524CAD 345
      • SEA06:19
        16h 1m
        1 stop
        LGW06:20
        Seattle - London|Tue, May 7|Alaska Airlines
        CAD 348CAD 524
        34% OFF
        34% OFF
        CAD 524CAD 348
      • SEA06:19
        23h 11m
        1 stop
        LGW13:30
        Seattle - London|Sat, May 4|Alaska Airlines
        CAD 356
        CAD 356
      • SEA15:30
        36h 30m
        2 stops
        LHR12:00
        Seattle - London|Fri, May 24|WestJet
        CAD 360
        CAD 360
      • SEA06:00
        23h 30m
        2 stops
        LGW13:30
        Seattle - London|Sat, May 4|American Airlines
        CAD 364
        CAD 364
      • SEA06:19
        16h 1m
        1 stop
        LGW06:20
        Seattle - London|Mon, May 6|Alaska Airlines
        CAD 366
        CAD 366
      • SEA07:00
        20h
        1 stop
        LGW11:00
        Seattle - London|Thu, May 9|Alaska Airlines
        CAD 368
        CAD 368
      • SEA07:00
        41h 20m
        2 stops
        LTN08:20
        Seattle - London|Mon, May 27|WestJet
        CAD 377
        CAD 377
      • SEA07:00
        40h 50m
        2 stops
        LTN07:50
        Seattle - London|Sun, May 26|WestJet
        CAD 385
        CAD 385
      • SEA13:00
        3h 5m
        Direct
        LON14:00
        Seattle - London|Thu, May 9|WestJet
        Find More Flights
        Find More Flights

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

Selected Airlines from Seattle-Tacoma International Airport to London

See which airlines fly from Seattle-Tacoma International Airport to London. Find the airline that best meets your travel needs by comparing prices and treat yourself to an enjoyable journey.

WestJet
From CAD 276
Alaska Airlines
From CAD 345
Jetblue Airways
From CAD 348
Frontier Airlines
From CAD 360
American Airlines
From CAD 364
Sun Country Airlines
From CAD 396
United Airlines
From CAD 420
Icelandair
From CAD 423
Delta Air Lines
From CAD 443
Southwest Airlines
From CAD 529
ANA airlines
Find more flights and airlines

Find Suitable Airport in London

Learn about different airports in London, find the best flight and transfer options, and plan your journey.

  • 14.96 km from central LondonClosest
    London City Airport
    Tickets From
    CAD 481
  • 20.15 km from central LondonCheapest
    London Heathrow Airport
    Tickets From
    CAD 276
  • 44.63 km from central London
    London Luton Airport
    Tickets From
    CAD 377
  • 52.43 km from central London
    London Stansted Airport
    Tickets From
    CAD 390
  • 38.83 km from central London
    London Gatwick Airport
    Tickets From
    CAD 345
  • 60.36 km from central London
    London Southend Airport
    Tickets From
    CAD 914
Flight Schedule from Seattle-Tacoma International Airport to London

Check the schedule for flights from Seattle-Tacoma International Airport to London and find the flight that best matches your travel plans.

Flight info.
Departure
Arrival
Weekly Schedule

  1. AS280

    Alaska Airlines

    06:32

    SEA

    5.3h

    14:53

    EWR

    SMTWTFS
    Search

  2. Z0702

    Norse Atlantic Airways

    18:20

    JFK

    7.0h

    06:20

    LGW

    SMTWTFS

  3. AS280

    Alaska Airlines

    06:32

    SEA

    5.3h

    14:53

    EWR

    SMTWTFS
    Search

  4. AA100

    American Airlines

    18:10

    JFK

    7.2h

    06:20

    LHR

    SMTWTFS

  5. AS1166

    Alaska Airlines

    07:00

    SEA

    2.3h

    09:15

    SFO

    SMTW-FS
    Search

  6. AA4887

    American Airlines

    11:40

    SFO

    1.5h

    13:12

    LAX

    SMTW---

  7. AA136

    American Airlines

    14:30

    LAX

    10.5h

    09:00

    LHR

    SMTWTFS

  8. DL3881

    Delta Air Lines

    07:25

    SEA

    2.6h

    10:03

    ONT

    -MTW---
    Search

  9. AA136

    American Airlines

    14:30

    LAX

    10.5h

    09:00

    LHR

    SMTWTFS

  10. DL1114

    Delta Air Lines

    07:50

    SEA

    5.5h

    16:21

    BOS

    S---TFS
    Search

  11. AA108

    American Airlines

    20:35

    BOS

    6.5h

    08:05

    LHR

    SMTWTFS

  12. UA2606

    United Airlines

    15:30

    SEA

    2.3h

    17:48

    SFO

    SMT-TFS
    Search

  13. UA930

    United Airlines

    19:45

    SFO

    10.4h

    14:10

    LHR

    SMTWTFS

  14. UA747

    United Airlines

    17:15

    SEA

    4.0h

    23:13

    ORD

    SMTWTFS
    Search

  15. AA090

    American Airlines

    08:30

    ORD

    7.7h

    22:10

    LHR

    SMTWTFS

  16. AS298

    Alaska Airlines

    22:49

    SEA

    5.2h

    06:59

    EWR

    SMTWTFS
    Search

  17. AA142

    American Airlines

    09:29

    JFK

    7.2h

    21:40

    LHR

    SMTWTFS

  18. AA2368

    American Airlines

    22:52

    SEA

    4.1h

    05:00

    ORD

    ----TFS
    Search

  19. AA090

    American Airlines

    08:30

    ORD

    7.7h

    22:10

    LHR

    SMTWTFS

  20. AA1181

    American Airlines

    23:59

    SEA

    4.2h

    06:11

    ORD

    SMTW---
    Search

  21. AA090

    American Airlines

    08:30

    ORD

    7.7h

    22:10

    LHR

    SMTWTFS
Find more flights and airlines

Flight Info of Flights from Seattle-Tacoma International Airport to London

Cheapest return ticket price

CAD 1,095

Cheapest direct flight price

CAD 275

Cheapest month

May

Peak season for travel

June

FAQs for Seattle-Tacoma International Airport to London Flights

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