Outbound | Return | Airlines | Shop | Baggage | Price | ||
---|---|---|---|---|---|---|---|
Seattle-Tacoma London | Outbound 09/19/25 1 Stopover (KEF) FI0680, FI0450 12h 10min | Return 09/29/25 1 Stopover (KEF) FI0455, FI0683 31h 15min | | ![]() | $502 | ||
Best option Seattle-Tacoma London | Outbound 07/25/25 direct IB3506 09h 20min | Return 08/17/25 direct IB3507 09h 50min | | ![]() | $689 | ||
Seattle-Tacoma London | Outbound 04/29/25 1 Stopover (KEF) FI0682, FI0454 17h 20min | Return 05/08/25 1 Stopover (YYC) WS0019, AS2239 12h 55min | | ![]() | $792 | ||
Seattle-Tacoma London | Outbound 09/19/25 2 Stopovers (LAX, FRA) AS1144, DE2087, LH0914 20h 40min | Return 09/29/25 2 Stopovers (FRA, BOS) LH0923, DE2038, AS0393 20h 05min | | ![]() | $1,109 | ||
Seattle-Tacoma London | Outbound 09/19/25 1 Stopover (KEF) FI0680, FI0450 12h 10min | Return 09/29/25 1 Stopover (KEF) FI0455, FI0683 31h 15min | | ![]() | $504 | ||
Seattle-Tacoma London | Outbound 09/19/25 1 Stopover (KEF) FI0680, FI0450 12h 10min | Return 09/29/25 1 Stopover (KEF) FI0455, FI0683 31h 15min | | ![]() | ? | $511 | |
Seattle-Tacoma London | Outbound 09/19/25 1 Stopover (KEF) FI0680, FI0450 12h 10min | Return 09/29/25 1 Stopover (KEF) FI0455, FI0683 31h 15min | | ![]() | ? | $530 | |
Seattle-Tacoma London | Outbound 09/19/25 1 Stopover (KEF) FI0680, FI0450 12h 10min | Return 09/29/25 1 Stopover (KEF) FI0455, FI0683 31h 15min | | ![]() | ? | $536 | |
Seattle-Tacoma London | Outbound 04/29/25 1 Stopover (DUB) EI0052, EI0166 12h 10min | Return 05/08/25 1 Stopover (DUB) EI0151, EI0053 17h 19min | | ![]() | $543 | ||
Seattle-Tacoma London | Outbound 04/29/25 1 Stopover (DUB) EI0052, EI0166 12h 10min | Return 05/08/25 1 Stopover (DUB) EI0151, EI0053 17h 19min | | ![]() | $545 |
Stops
- Direct flight
Airline
- Icelandair
- Aer Lingus Irish Airlines
- Air Canada
- Virgin Atlantic Airways
- Lufthansa
Tips and tricks to help you find cheap flights from Seattle Tacoma to London
Favorite airline: Icelandair
76 % of flights booked on the route from Seattle-Tacoma to London are booked with Icelandair, Virgin Atlantic and Air Canada.

Icelandair
39 %

Virgin Atlantic
23 %

Air Canada
14 %
Direct flights are more expensive
Direct flights on this route are $138.00 more expensive on average than flights with a stopover.
non stop flight
1 stop
2 stops
09h 20min
19h 55min
20h 00min
$601
$463
$1,060
Favourite connection: via Reykjavik-Keflavik
The most popular route is via Reykjavik-Keflavik and is booked by 54 % of all travelers.
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 %
Important flight information
Flight information: Seattle-Tacoma - London
Roundtrip from | $501.93 |
---|---|
Flight duration | min. 09:20 / max. 09:30 |
Return flight duration | min. 09:50/ max. 09:55 |
Distance | 7721 km |
Flights per week | 19 |
Departure airport | Airport Seattle-Tacoma International Airport, WA (SEA) |
Arrival airport | Airport London, all Airports (LCY, LGW, LHR, LTN, STN, SEN) (LON) |
Destination country | Flights to United Kingdom |
Alternative routes to United Kingdom
- Flight Seattle-Tacoma - London Heathrow from $502
Alternative flights to London
- Flight Charlotte - London from $615
- Flight New York - London from $388
- Flight San Francisco - London from $579
- Flight Los Angeles - London from $466
- Flight Columbus - London from $626
- Flight Atlanta - London from $547
- Flight Boston - London from $472
- Flight Dallas - London from $630
- Flight Chicago - London from $520
- Flight Philadelphia - London from $548
Flight destinations with a similar price
- Flight London - Frankfurt from $139
- Flight London - Lagos from $626
- Flight London - Amsterdam from $154
- Flight London - Erbil from $382
- Flight London - Cologne from $120
- Flight London - Dusseldorf from $104
- Flight London - Toronto from $411
Flight destinations with a similar price
- Flight Seattle-Tacoma - Frankfurt from $480
- Flight Seattle-Tacoma - London Heathrow from $502
- Flight Seattle-Tacoma - Munich from $548
- Flight Seattle-Tacoma - Dublin from $522
- Flight Seattle-Tacoma - Hamburg from $492
- Flight Seattle-Tacoma - Port of Spain from $534