Trip.com
>
Cheap Flights
>
United Kingdom
>
Greater London
>
London
>
Seattle to London flight
>
Seattle–Tacoma International Airport to Heathrow Airport flight

Cheap Flight Deals from Seattle–Tacoma International Airport to Heathrow Airport

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

  • Round-trip
  • One way

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 Heathrow Airport

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

Hawaiian Airlines
From £233
Frontier Airlines
From £243
Delta Air Lines
From £252
WestJet
From £256
Alaska Airlines
From £258
American Airlines
From £271
Air Canada
From £282
Jetblue Airways
From £352
Icelandair
From £357
United Airlines
From £358

Find more flights and airlines

Flight Schedule from Seattle–Tacoma International Airport to Heathrow Airport

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

Flight info.
Departure
Arrival
Weekly Schedule

  1. IB3508

    Seattle–Tacoma International Airport

    13:30

    SEA

    9h 20m

    Direct

    06:50

    LHR

    S M T W T F S
    Search

  2. VS106

    Seattle–Tacoma International Airport

    15:35

    SEA

    9h 25m

    Direct

    09:00

    LHR

    S M T W T F S
    Search

  3. FI680

    Seattle–Tacoma International Airport

    15:45

    SEA

    7h 30m

    06:15

    KEF

    S M T W T F S
    Search

  4. FI450

    Keflavik International Airport

    07:40

    KEF

    3h 15m

    11:55

    LHR

    S M T W T F S

  5. UA2013

    Seattle–Tacoma International Airport

    14:18

    SEA

    4h 7m

    20:25

    ORD

    S M T - - - S
    Search

  6. UA938

    O'Hare International Airport

    21:05

    ORD

    8h 10m

    11:15

    LHR

    S M T W T F S

  7. VS1582

    Seattle–Tacoma International Airport

    08:25

    SEA

    3h 25m

    13:50

    MSP

    S M T W T F S
    Search

  8. VS4040

    Minneapolis–Saint Paul International Airport

    23:10

    MSP

    7h 5m

    12:15

    LHR

    S M T W T F S

  9. WS1553

    Seattle–Tacoma International Airport

    14:05

    SEA

    1h 40m

    16:45

    YYC

    S M T W T F S
    Search

  10. WS018

    Calgary International Airport

    20:35

    YYC

    8h 30m

    12:05

    LHR

    S M T W T F S

  11. UA1620

    Seattle–Tacoma International Airport

    15:24

    SEA

    2h 17m

    17:41

    SFO

    S M T - - F S
    Search

  12. UA930

    San Francisco International Airport

    19:40

    SFO

    10h 30m

    14:10

    LHR

    S M T W T F S

  13. AS306

    Seattle–Tacoma International Airport

    08:21

    SEA

    5h 24m

    16:45

    BOS

    S M T W T F S
    Search

  14. AA108

    Logan International Airport

    20:20

    BOS

    6h 30m

    07:50

    LHR

    S M T W T F S

  15. IB4226

    Seattle–Tacoma International Airport

    11:20

    SEA

    4h 4m

    17:24

    ORD

    S M T W T F S
    Search

  16. IB4188

    O'Hare International Airport

    20:35

    ORD

    7h 55m

    10:30

    LHR

    S M T W T F S

  17. B6264

    Seattle–Tacoma International Airport

    23:10

    SEA

    5h 18m

    07:28

    JFK

    - - T W T F S
    Search

  18. B61107

    John F. Kennedy International Airport

    09:31

    JFK

    7h 14m

    20:45

    LHR

    S M T W T F S
Find more flights and airlines

Seattle–Tacoma International Airport to Heathrow Airport Flights Info

Flight distance 7,711.31km
Cheapest one-way ticket price £208
Cheapest return ticket price £452

FAQs for Seattle–Tacoma International Airport to Heathrow Airport Flights

  • How long does it take to fly from Seattle–Tacoma International Airport (SEA) to Heathrow Airport (LHR)?

    It takes around 9 hours 33 minutes to fly from Seattle–Tacoma International Airport (SEA) to Heathrow Airport(LHR).

  • How many daily flights are there from Seattle–Tacoma International Airport (SEA) to Heathrow Airport (LHR)?

    There are around 14 daily flights from Seattle–Tacoma International Airport (SEA) to Heathrow Airport (LHR).

  • When are flight tickets from Seattle–Tacoma International Airport (SEA) to Heathrow Airport (LHR) the cheapest?

    Tickets cost around £404 in April, making it the cheapest month to book. Seattle–Tacoma International Airport (SEA) to Heathrow Airport (LHR) is a popular route, so don't forget to book your tickets in advance.

  • When are flight tickets from Seattle–Tacoma International Airport (SEA) to Heathrow Airport (LHR) most expensive?

    The route from Seattle–Tacoma International Airport (SEA) to Heathrow Airport (LHR) is quite popular. Without considering departure times or holidays, tickets cost around £587 in June, the most expensive month to book this route.

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

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

  • Which airline operates the most direct flights from Seattle–Tacoma International Airport (SEA) to Heathrow Airport (LHR)?

    Virgin Atlantic is a very popular airline operating an average of 2633 flights per month.

Find Cheap Flights with Trip.com

  • Popular Routes from Seattle–Tacoma International Airport
  • Recommended Routes Going to Heathrow Airport
  • Recommended Routes at Seattle–Tacoma International Airport