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

  • One way
  • Round-trip
sortSort: Price (Lowest)
  • Sort: Price (Lowest)
  • Sort: Departure (Earliest)
      • LTN06:00
        19h 22m
        2 stops
        SEA17:22
        London - Seattle|Mon, Jul 15|easyJet
        US$432US$674
        36% OFF
        36% OFF
        US$674US$432
      • LHR21:25
        27h 56m
        2 stops
        SEA17:21
        London - Seattle|Mon, Jul 1|Icelandair
        US$452US$674
        33% OFF
        33% OFF
        US$674US$452
      • STN11:40
        33h 16m
        2 stops
        SEA12:56
        London - Seattle|Mon, Jul 1|PLAY Airline
        US$472US$674
        30% OFF
        30% OFF
        US$674US$472
      • LTN06:00
        19h 21m
        2 stops
        SEA17:21
        London - Seattle|Mon, Aug 5|easyJet
        US$502
        US$502
      • LGW11:10
        33h 46m
        2 stops
        SEA12:56
        London - Seattle|Mon, Jul 1|WestJet
        US$511
        US$511
      • LTN06:05
        15h 5m
        1 stop
        SEA13:10
        London - Seattle|Thu, Aug 29|easyJet
        US$519
        US$519
      • LGW11:00
        38h 21m
        2 stops
        SEA17:21
        London - Seattle|Thu, Jul 11|WestJet
        US$520
        US$520
      • LHR07:20
        13h 50m
        1 stop
        SEA13:10
        London - Seattle|Thu, Aug 22|British Airways
        US$543
        US$543
      • LHR07:20
        13h 50m
        1 stop
        SEA13:10
        London - Seattle|Thu, Aug 29|British Airways
        US$544
        US$544
      • LHR21:25
        21h 55m
        1 stop
        SEA11:20
        London - Seattle|Tue, Aug 6|Icelandair
        US$570
        US$570
      • LON13:00
        3h 5m
        Direct
        SEA14:00
        London - Seattle|Mon, Jul 8|easyJet
        Find More Flights
        Find More Flights

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

Flight Schedule from London to Seattle-Tacoma International Airport
Flight info.
Departure
Arrival
Weekly Schedule

  1. U22433

    easyJet

    06:05

    LTN

    1.3h

    08:25

    CDG

    SMTWTFS
    Search

  2. TN057

    Air Tahiti Nui

    12:05

    CDG

    10.1h

    13:10

    SEA

    ---W--S

  3. AF1381

    Air France

    06:15

    LHR

    1.3h

    08:35

    CDG

    SMTWTFS
    Search

  4. TN057

    Air Tahiti Nui

    12:05

    CDG

    10.1h

    13:10

    SEA

    ---W--S

  5. U22635

    easyJet

    06:30

    LTN

    3.1h

    08:35

    KEF

    S-T-T-S
    Search

  6. FI685

    Icelandair

    10:30

    KEF

    7.8h

    11:20

    SEA

    SMTWTFS

  7. BA304

    British Airways

    07:20

    LHR

    1.3h

    09:40

    CDG

    SMTWTFS
    Search

  8. TN057

    Air Tahiti Nui

    12:05

    CDG

    10.1h

    13:10

    SEA

    ---W--S

  9. EI151

    Aer Lingus

    07:40

    LHR

    1.3h

    09:00

    DUB

    SMTWTF-
    Search

  10. WS005

    WestJet

    12:55

    DUB

    8.3h

    14:16

    YYC

    -MT-T-S

  11. WS1552

    WestJet

    16:30

    YYC

    1.9h

    17:22

    SEA

    SMTWTFS

  12. BA800

    British Airways

    07:40

    LHR

    3.1h

    09:45

    KEF

    SMTWTFS
    Search

  13. FI685

    Icelandair

    10:30

    KEF

    7.8h

    11:20

    SEA

    SMTWTFS

  14. FI471

    Icelandair

    13:00

    LGW

    3.3h

    15:15

    KEF

    SMTWTFS
    Search

  15. FI683

    Icelandair

    19:45

    KEF

    7.8h

    20:35

    SEA

    SMTWTFS

  16. FI471

    Icelandair

    13:00

    LGW

    3.3h

    15:15

    KEF

    SMTWTFS
    Search

  17. FI681

    Icelandair

    16:50

    KEF

    7.8h

    17:40

    SEA

    SMTWTFS

  18. FI451

    Icelandair

    13:10

    LHR

    3.2h

    15:20

    KEF

    SMTWTFS
    Search

  19. FI683

    Icelandair

    19:45

    KEF

    7.8h

    20:35

    SEA

    SMTWTFS

  20. WS019

    WestJet

    14:10

    LHR

    8.7h

    15:53

    YYC

    SMTWTFS
    Search

  21. WS1554

    WestJet

    19:30

    YYC

    1.9h

    20:22

    SEA

    SMTWTFS
Find more flights and airlines

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

Cheapest round-trip ticket price

$592

Cheapest nonstop flight price

$542

Off-season for travel

September

Peak season for travel

December

FAQs for London to Seattle-Tacoma International Airport Flights

  • When are flight tickets from London (LON) to Seattle (SEA) the cheapest?

    Airlines adjust prices for flights from London to Seattle 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 London (LON) to Seattle (SEA) cost?

    According to Trip.com's data, the lowest price is around $1,615.

  • How long does it take to fly from London (LON) to Seattle (SEA) and what is the distance?

    It takes around 9 hours 54 minutes to fly from London (LON) to Seattle (SEA).

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

    • The distance from Seattle-Tacoma International Airport to downtown is about 17km. It takes about 30 minutes by taxi.

  • What are the most popular airlines that fly from London (LON) to Seattle (SEA)?

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