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Seattle to London Heathrow Airport flight
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Cheap Flights from Seattle to London Heathrow Airport

  • One way
  • Round-trip
sortSort by: Lowest Price
  • Sort by: Lowest Price
  • Sort by: Earliest Flight
      • SEA06:30
        18h 30m
        1 stop
        LHR09:00
        Seattle - London|Mon, Aug 5|Alaska Airlines
        ₩ 426,415₩ 660,613
        35% OFF
        35% OFF
        ₩ 660,613₩ 426,415
      • SEA06:30
        18h 30m
        1 stop
        LHR09:00
        Seattle - London|Tue, Jun 25|Alaska Airlines
        ₩ 459,811₩ 660,613
        30% OFF
        30% OFF
        ₩ 660,613₩ 459,811
      • SEA23:00
        28h 55m
        1 stop
        LHR11:55
        Seattle - London|Mon, Jul 8|Icelandair
        ₩ 467,170₩ 660,613
        28% OFF
        28% OFF
        ₩ 660,613₩ 467,170
      • SEA23:00
        28h 55m
        1 stop
        LHR11:55
        Seattle - London|Sun, Jul 14|Icelandair
        ₩ 470,377
        ₩ 470,377
      • SEA07:00
        18h
        1 stop
        LHR09:00
        Seattle - London|Wed, Jul 10|Alaska Airlines
        ₩ 492,264
        ₩ 492,264
      • SEA23:48
        27h 2m
        1 stop
        LHR10:50
        Seattle - London|Thu, Jul 4|Alaska Airlines
        ₩ 508,868
        ₩ 508,868
      • SEA16:25
        15h 40m
        1 stop
        LHR16:05
        Seattle - London|Tue, Jun 25|United Airlines
        ₩ 512,075
        ₩ 512,075
      • SEA06:15
        18h 45m
        1 stop
        LHR09:00
        Seattle - London|Thu, Jul 11|Alaska Airlines
        ₩ 516,226
        ₩ 516,226
      • SEA06:07
        22h 8m
        1 stop
        LHR12:15
        Seattle - London|Fri, Jul 12|Alaska Airlines
        ₩ 516,226
        ₩ 516,226
      • SEA23:00
        28h 55m
        1 stop
        LHR11:55
        Seattle - London|Thu, Aug 1|Icelandair
        ₩ 526,792
        ₩ 526,792
      • SEA13:00
        3h 5m
        Direct
        LHR14:00
        Seattle - London|Thu, Jun 13|Alaska Airlines
        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 to London Heathrow Airport
Frontier Airlines
From ₩ 354,906
Alaska Airlines
From ₩ 389,434
WestJet
From ₩ 398,868
Delta Air Lines
From ₩ 399,623
United Airlines
From ₩ 414,717
Icelandair
From ₩ 440,943
Sun Country Airlines
From ₩ 476,415
Spirit Airlines
From ₩ 480,189
American Airlines
From ₩ 481,132
Aer Lingus
From ₩ 652,642
ANA airlines

Find more flights and airlines

There are 1 airport(s) in Seattle. Discover the top routes now!

  • 0.7 km from downtown Seattle
    Seattle-Tacoma International Airport
    Tickets From
    ₩ 354,906
Flight Schedule from Seattle to London Heathrow Airport
Flight info.
Departure
Arrival
Weekly Schedule

  1. DL3991

    Delta Air Lines

    07:22

    SEA

    2.3h

    09:39

    SFO

    SMTWTFS
    Search

  2. AA6196

    American Airlines

    11:20

    SFO

    1.6h

    12:53

    LAX

    SMTWTFS

  3. AA136

    American Airlines

    14:20

    LAX

    10.7h

    09:00

    LHR

    SMTWTFS

  4. AA6255

    American Airlines

    08:30

    SEA

    2.8h

    11:19

    LAX

    SMTWTFS
    Search

  5. AA136

    American Airlines

    14:20

    LAX

    10.7h

    09:00

    LHR

    SMTWTFS

  6. FI680

    Icelandair

    15:50

    SEA

    7.4h

    06:15

    KEF

    SMTWTFS
    Search

  7. FI450

    Icelandair

    07:40

    KEF

    3.3h

    11:55

    LHR

    SMTWTFS

  8. UA1960

    United Airlines

    16:25

    SEA

    2.8h

    19:12

    LAX

    SMTWTFS
    Search

  9. AA138

    American Airlines

    21:25

    LAX

    10.7h

    16:05

    LHR

    SMTWTFS

  10. FI682

    Icelandair

    18:55

    SEA

    7.3h

    09:15

    KEF

    SMTWTFS
    Search

  11. FI418

    Icelandair

    10:15

    KEF

    2.6h

    13:50

    DUB

    --TW---

  12. EI176

    Aer Lingus

    17:30

    DUB

    1.4h

    18:55

    LHR

    SMTWTF-

  13. FI682

    Icelandair

    18:55

    SEA

    7.3h

    09:15

    KEF

    SMTWTFS
    Search

  14. FI418

    Icelandair

    10:15

    KEF

    2.6h

    13:50

    DUB

    --TW---

  15. EI174

    Aer Lingus

    15:55

    DUB

    1.4h

    17:20

    LHR

    SMTWTFS

  16. AS328

    Alaska Airlines

    22:44

    SEA

    3.9h

    04:37

    ORD

    SMTWTFS
    Search

  17. AA090

    American Airlines

    08:20

    ORD

    7.8h

    22:10

    LHR

    SMTWTFS

  18. FI684

    Icelandair

    23:00

    SEA

    7.4h

    13:25

    KEF

    SMTWTFS
    Search

  19. FI454

    Icelandair

    16:10

    KEF

    3.2h

    20:20

    LHR

    SMTWTFS

  20. AS026

    Alaska Airlines

    23:41

    SEA

    5.3h

    07:57

    JFK

    SMTWTFS
    Search

  21. AA142

    American Airlines

    09:45

    JFK

    6.9h

    21:40

    LHR

    SMTWTFS

  22. AA2368

    American Airlines

    23:59

    SEA

    4.0h

    06:02

    ORD

    SMTWTFS
    Search

  23. AA090

    American Airlines

    08:20

    ORD

    7.8h

    22:10

    LHR

    SMTWTFS
Find more flights and airlines

Flight Info of Flights from Seattle to London Heathrow Airport

Cheapest round-trip ticket price

₩ 916,603

Cheapest nonstop flight price

₩ 399,245

Off-season for travel

May

Peak season for travel

September

FAQs for Seattle to London Heathrow Airport Flights

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

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

    According to Trip.com's data, the lowest price is around ₩ 1,910,188.

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

    It takes around 9 hours 23 minutes to fly from Seattle (SEA) to London (LON).

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

    • The distance from London Gatwick Airport to downtown is about 39km. It takes about 50 minutes by taxi.
    • The distance from London Heathrow Airport to downtown is about 23km. It takes about 40 minutes by taxi.
    • The distance from London Luton Airport to downtown is about 44km. It takes about 1 hour by taxi.

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

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