| Seattle-Tacoma London Heathrow | 05/14/24 1 Stopover (KEF) FI0682, FI0454 17h 25min | 05/30/24 1 Stopover (KEF) FI0451, FI0683 15h 25min |  Icelandair |  | ? | $527 Found several days ago | Check |
| Best option Seattle-Tacoma London Heathrow | 07/19/24 direct BA0052 09h 20min | 08/16/24 direct BA0053 09h 45min |  British Airways |  | ? | $983 Found several days ago | Check |
| Seattle-Tacoma London Heathrow | 05/14/24 1 Stopover (KEF) FI0682, FI0454 17h 25min | 05/30/24 1 Stopover (KEF) FI0451, FI0683 15h 25min | Icelandair |  | $528 Found several days ago | Check | |
| Seattle-Tacoma London Heathrow | 05/14/24 1 Stopover (KEF) FI0682, FI0454 17h 25min | 05/30/24 1 Stopover (KEF) FI0451, FI0683 15h 25min | Icelandair |  | $531 Found several days ago | Check | |
| Seattle-Tacoma London Heathrow | 05/14/24 1 Stopover (KEF) FI0682, FI0454 17h 25min | 05/30/24 1 Stopover (KEF) FI0455, FI0685 21h 55min | Icelandair |  | ? | $543 Found several days ago | Check |
| Seattle-Tacoma London Heathrow | 05/14/24 1 Stopover (KEF) FI0682, FI0454 17h 25min | 05/30/24 1 Stopover (KEF) FI0451, FI0683 15h 25min | Icelandair |  | ? | $544 Found several days ago | Check |
| Seattle-Tacoma London Heathrow | 05/14/24 1 Stopover (KEF) FI0682, FI0454 17h 25min | 05/30/24 1 Stopover (KEF) FI0451, FI0683 15h 25min | Icelandair |  | $557 Found several days ago | Check | |
| Seattle-Tacoma London Heathrow | 05/14/24 1 Stopover (KEF) FI0682, FI0454 17h 25min | 05/30/24 1 Stopover (KEF) FI0455, FI0685 21h 55min | Icelandair |  | ? | $617 Found several days ago | Check |
| Seattle-Tacoma London Heathrow | 08/10/24 1 Stopover (IAD) UA1631, UA0918 23h 16min | 08/27/24 1 Stopover (IAD) UA0919, UA0326 15h 55min |  United Airlines | | ? | $667 Found several days ago | Check |
| Seattle-Tacoma London Heathrow | 08/07/24 1 Stopover (YUL) AC0514, AC0866 14h 50min | 09/06/24 1 Stopover (MUC) LH2485, LH0488 17h 30min |  Air Canada | | ? | $671 Found several days ago | Check |
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Find cheap flights -
Booking tips
- Flights
- Flight Routes
- Flights to United Kingdom
- Flights to London
- Flights to London Heathrow
- Flights Seattle-Tacoma (SEA) London Heathrow (LHR)
Stops
Airline
- United Airlines
- Air Canada
- British Airways
- Aer Lingus Irish Airlines
- Icelandair
- other
Flight type
- Return
Outbound departure month
- May 2024
- July 2024
- August 2024
Outbound weekday
- Tuesday
- Wednesday
- Friday
- Saturday
Return departure month
- May 2024
- June 2024
- August 2024
- September 2024
Return weekday
- Tuesday
- Thursday
- Friday
Change in
- Los Angeles International Airport, CA
- Washington DC - Dulles International Airport, DC
- San Francisco International Airport, CA
- Montréal-Pierre Elliott Trudeau International Airport
- Dublin
- Reykjavik-Keflavik International
Tips and tricks to help you find cheap flights from Seattle Tacoma to London Heathrow
Favorite airline: Icelandair
The majority of passengers on the route Seattle-Tacoma – London Heathrow prefer to fly with Icelandair.
Icelandair
39 %
Virgin Atlantic
23 %
Air Canada
14 %
Direct flights are more expensive
Flights with a stopover are on average $138.00 cheaper than direct flights.
non stop flight
1 stop
2 stops
09h 20min
19h 55min
20h 00min
$601
$463
$1,060
Favourite connection: via Reykjavik-Keflavik
54 % of booked tickets on this route are for flights with a transfer in Reykjavik-Keflavik.
Route
bookings
1 stopover Reykjavik-Keflavik International
19h 55min, from $463
54 %
Direct flights
09h 20min, from $601
22 %
1 stopover Dublin
13h 45min, from $600
10 %
Flight information: Seattle-Tacoma - London Heathrow
| Roundtrip from | $526.17 |
|---|---|
| Flight duration | min. 09:20 / max. 09:30 |
| Return flight duration | min. 09:50/ max. 09:55 |
| Distance | 7710 km |
| Flights per week | 19 |
| Departure airport | Seattle-Tacoma International Airport, WA (SEA) |
| Arrival airport | London Heathrow (LHR) |
| Destination country | United Kingdom |
Alternative routes to United Kingdom
- Seattle-Tacoma - London from $527
Alternative flights to London Heathrow
- Los Angeles - London Heathrow from $539
- Chicago O'Hare - London Heathrow from $558
- Orlando - London Heathrow from $506
- Washington DC - London Heathrow from $546
- Detroit - London Heathrow from $607
- Newark - London Heathrow from $401
- Cleveland - London Heathrow from $633
- Atlanta - London Heathrow from $828
- Minneapolis - London Heathrow from $919
- Charlotte - London Heathrow from $789
Flight destinations with a similar price
- London Heathrow - Vienna from $140
- London Heathrow - Toronto from $479
- London Heathrow - Cologne from $113
- London Heathrow - Dusseldorf from $134
- London Heathrow - Frankfurt from $124
- London Heathrow - Munich from $130
- London Heathrow - Stuttgart from $130
- London Heathrow - Hamburg from $162
- London Heathrow - Islamabad from $703
- London Heathrow - Delhi from $494
Flight destinations with a similar price
- Seattle-Tacoma - Berlin from $549
- Seattle-Tacoma - London from $527