| Outbound | Return | Airlines | Shop | Baggage | Price | ||
|---|---|---|---|---|---|---|---|
| Seattle-Tacoma London Heathrow | Outbound 04/12/25 1 Stopover (IAH) UA2379, UA0880 23h 41min | Return 04/27/25 1 Stopover (YVR) UA8581, UA8249 12h 18min |  United Airlines |  | ? | $634 | |
| Best option Seattle-Tacoma London Heathrow | Outbound 04/12/25 direct IB3506 09h 20min | Return 04/27/25 direct IB3509 09h 45min |  Iberia |  | $1,102 | ||
| Seattle-Tacoma London Heathrow | Outbound 04/12/25 2 Stopovers (YVR, YYC) AC8811, AC0200, AC0850 32h 45min | Return 04/27/25 1 Stopover (YVR) LH6812, LH6564 15h 53min |  Air Canada |  | $636 | ||
| Seattle-Tacoma London Heathrow | Outbound 04/12/25 2 Stopovers (YVR, YYC) AC8811, AC0200, AC0850 32h 45min | Return 04/27/25 1 Stopover (YVR) LH6812, LH6564 15h 53min | Air Canada |  | $638 | ||
| Seattle-Tacoma London Heathrow | Outbound 04/12/25 1 Stopover (ORD) UA0747, UA0929 22h 35min | Return 04/27/25 1 Stopover (YVR) LH6812, LH6776 12h 18min | United Airlines |  | ? | $648 | |
| Seattle-Tacoma London Heathrow | Outbound 04/12/25 1 Stopover (KEF) FI0682, FI0450 32h 55min | Return 04/27/25 1 Stopover (KEF) FI0451, FI0683 15h 35min |  Icelandair |  | ? | $719 | |
| Seattle-Tacoma London Heathrow | Outbound 04/12/25 1 Stopover (KEF) FI0682, FI0450 32h 55min | Return 04/27/25 1 Stopover (KEF) FI0451, FI0683 15h 35min | Icelandair |  | ? | $725 | |
| Seattle-Tacoma London Heathrow | Outbound 04/12/25 2 Stopovers (YYZ, YUL) AC0540, AC0418, AC0866 16h 25min | Return 04/27/25 1 Stopover (YYZ) AC0855, AC0543 17h 21min | Air Canada |  | ? | $743 | |
| Seattle-Tacoma London Heathrow | Outbound 04/12/25 1 Stopover (KEF) FI0682, FI0454 17h 20min | Return 04/27/25 1 Stopover (KEF) FI0451, FI0683 15h 35min | Icelandair |  | $753 |
Airline
- Air Canada
- Icelandair
- United Airlines
- Iberia
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 %
Important flight information
Flight information: Seattle-Tacoma - London Heathrow
| Roundtrip from | $633.03 |
|---|---|
| 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 | Airport Seattle-Tacoma International Airport, WA (SEA) |
| Arrival airport | Airport London Heathrow (LHR) |
| Destination country | Flights to United Kingdom |
Alternative routes to United Kingdom
- Flight Seattle-Tacoma - London from $634
Alternative flights to London Heathrow
- Flight Los Angeles - London Heathrow from $636
- Flight Washington DC - London Heathrow from $442
- Flight Denver - London Heathrow from $588
- Flight Detroit - London Heathrow from $464
- Flight Miami - London Heathrow from $571
- Flight New York - London Heathrow from $561
- Flight Orlando - London Heathrow from $565
- Flight Raleigh-Durham - London Heathrow from $683
- Flight Tampa - London Heathrow from $670
- Flight Boston - London Heathrow from $445
Flight destinations with a similar price
- Flight London Heathrow - Colombo from $686
- Flight London Heathrow - Tangier from $225
- Flight London Heathrow - Abu Dhabi from $378
- Flight London Heathrow - Barcelona from $126
- Flight London Heathrow - Cologne from $120
- Flight London Heathrow - Dusseldorf from $122
- Flight London Heathrow - Frankfurt from $161
- Flight London Heathrow - Toronto from $420
- Flight London Heathrow - Amman from $285
- Flight London Heathrow - Manila from $733
Flight destinations with a similar price
- Flight Seattle-Tacoma - Kahului from $586
- Flight Seattle-Tacoma - Kona from $619
- Flight Seattle-Tacoma - Lihue from $630
- Flight Seattle-Tacoma - London from $634
- Flight Seattle-Tacoma - Dublin from $628
- Flight Seattle-Tacoma - Columbia from $570
- Flight Seattle-Tacoma - Dusseldorf from $668
- Flight Seattle-Tacoma - Frankfurt from $644
- Flight Seattle-Tacoma - Stuttgart from $664
- Flight Seattle-Tacoma - Hamburg from $670