Cheap Flights from London to Seattle, WA from $381
On Cheapflightsplus.com you will find 7 direct and 136 connecting flights from London to Seattle. You can compare airfare deals from 25 airlines and multiple travel sites from $381, book and save on cheap plane tickets and last minute offers. Also check out LON-SEA flight schedule to find best flight time, convenient departure and arrival airports.
Find One-Way and Round-Trip London to Seattle Flight Deals
Best Flights from London to Seattle Today
Price | Departure | Arrival | Flight Duration | Airline | Flight |
---|---|---|---|---|---|
from $508 | 16:30 London Heathrow | 18:20 Seattle Seattle-Tacoma Intl | 9h 50m | British Airways | BA49 |
from $553 | 09:50 London Heathrow | 11:35 Seattle Seattle-Tacoma Intl | 9h 45m | Iberia | IB3509 |
from $1039 | 09:50 London Heathrow | 11:35 Seattle Seattle-Tacoma Intl | 9h 45m | Finnair | AY5451 |
from $1041 | 16:30 London Heathrow | 18:20 Seattle Seattle-Tacoma Intl | 9h 50m | Iberia | IB3507 |
from $1088 | 09:50 London Heathrow | 11:35 Seattle Seattle-Tacoma Intl | 9h 45m | Aer Lingus | EI8753 |
from $458 | 13:05 London Gatwick | 19:54+1 день Seattle Seattle-Tacoma Intl | 38h 49m layover 24h 45m - New York | Z0 | Z0701 HA4926 |
from $501 | 13:25 London Heathrow | 17:50 Seattle Seattle-Tacoma Intl | 12h 25m layover 1h 20m - Dublin | Aer Lingus | EI163 EI53 |
from $559 | 07:40 London Heathrow | 17:50 Seattle Seattle-Tacoma Intl | 18h 10m layover 7h 10m - Dublin | Aer Lingus | EI151 EI53 |
from $381 | 21:20 London Gatwick | 21:36+1 день Seattle Seattle-Tacoma Intl | 32h 16m layover 10h 40m - Rome 3h 30m - Los Angeles | Aero Services Executive | W46004 N0411 HA6198 |
from $401 | 19:40 London Gatwick | 08:54+2 дня Seattle Seattle-Tacoma Intl | 45h 14m layover 18h 35m - Paris 10h 55m - Los Angeles | Vueling | VY8945 N0311 HA6202 |
from $418 | 14:40 London Gatwick | 20:35+1 день Seattle Seattle-Tacoma Intl | 37h 55m layover 3h 10m - Paris 19h 15m - Newark | Vueling | VY8947 N0301 HA4901 |
from $440 | 14:40 London Gatwick | 19:54+1 день Seattle Seattle-Tacoma Intl | 37h 14m layover 3h 10m - Paris 18h 25m - New York | Vueling | VY8947 N0301 HA4926 |
from $440 | 13:55 London Gatwick | 19:32+1 день Seattle Seattle-Tacoma Intl | 37h 37m layover 14h 0m - Athens 3h 26m - Los Angeles | Wizz Air UK | W95747 N0511 F91177 |
from $469 | 14:40 London Gatwick | 18:58+1 день Seattle Seattle-Tacoma Intl | 36h 18m layover 3h 10m - Paris 17h 45m - Newark | Vueling | VY8947 N0301 HA4899 |
from $474 | 14:40 London Gatwick | 14:39+1 день Seattle Seattle-Tacoma Intl | 31h 59m layover 3h 10m - Paris 13h 15m - New York | Vueling | VY8947 N0301 HA4925 |
from $480 | 14:40 London Gatwick | 14:39+1 день Seattle Seattle-Tacoma Intl | 31h 59m layover 3h 10m - Paris 13h 15m - New York | Vueling | VY8947 N0301 AS23 |
Flight Schedule London to Seattle (Washington)
Departure | Arrival | Flight Details | Flight Duration | Price |
---|---|---|---|---|
09:50 — 11:35
|
09:50 — 11:35
BA53
British Airways
London — Seattle
|
9h 45m |
Find flight
from$528 |
|
09:50 — 11:35
|
09:50 — 11:35
IB3509
Iberia
London — Seattle
|
9h 45m |
Find flight
from$553 |
|
09:50 — 11:35
|
09:50 — 11:35
AY5451
Finnair
London — Seattle
|
9h 45m |
Find flight
from$1039 |
|
09:50 — 11:35
|
09:50 — 11:35
EI8753
Aer Lingus
London — Seattle
|
9h 45m |
Find flight
from$1088 |
|
16:30 — 18:20
|
16:30 — 18:20
BA49
British Airways
London — Seattle
|
9h 50m |
Find flight
from$508 |
|
16:30 — 18:20
|
16:30 — 18:20
IB3507
Iberia
London — Seattle
|
9h 50m |
Find flight
from$1041 |
|
16:30 — 18:20
|
16:30 — 18:20
AY5449
Finnair
London — Seattle
|
9h 50m |
Find flight
from$1049 |
|
07:40 — 17:50
|
07:50 — 09:10
EI151
Aer Lingus
London — Dublin
7h 10m stop
16:30 — 18:15
EI53
Aer Lingus
Dublin — Seattle
|
18h 10m including layover |
Find flight
from$559 |
|
08:50 — 17:50
|
08:50 — 10:15
EI153
Aer Lingus
London — Dublin
5h 55m stop
16:30 — 18:15
EI53
Aer Lingus
Dublin — Seattle
|
17h including layover |
Find flight
from$501 |
|
08:50 — 17:50
|
08:50 — 10:15
BA5953
British Airways
London — Dublin
5h 55m stop
16:30 — 18:15
BA6149
British Airways
Dublin — Seattle
|
17h including layover |
Find flight
from$583 |
|
09:50 — 17:50
|
09:50 — 11:15
EI155
Aer Lingus
London — Dublin
4h 55m stop
16:30 — 18:15
EI53
Aer Lingus
Dublin — Seattle
|
16h including layover |
Find flight
from$501 |
|
11:35 — 19:31
|
11:35 — 14:15
TS729
Air Transat
London — Montreal
2h 30m stop
16:45 — 19:37
AC515
Air Canada
Montreal — Seattle
|
15h 56m including layover |
Find flight
from$564 |
|
12:00 — 17:50
|
12:10 — 13:35
EI159
Aer Lingus
London — Dublin
2h 45m stop
16:30 — 18:15
EI53
Aer Lingus
Dublin — Seattle
|
13h 50m including layover |
Find flight
from$501 |
|
06:05 — 19:52
|
06:05 — 08:25
U22433
EasyJet
London — Paris
4h 30m stop
12:55 — 14:08
WS9
WestJet
Paris — Calgary
4h 52m stop
19:00 — 19:52
AS2226
Alaska Airlines
Calgary — Seattle
|
21h 47m including layover |
Find flight
from$540 |
|
06:40 — 20:40
|
06:40 — 10:05
SK1530
SAS
London — Hagersten
6h 35m stop
16:40 — 17:55
FI309
Icelandair
Hagersten — Reykjavik
1h 50m stop
19:45 — 20:40
FI683
Icelandair
Reykjavik — Seattle
|
22h including layover |
Find flight
from$540 |
|
07:10 — 20:40
|
06:55 — 10:20
BA776
British Airways
London — Hagersten
6h 5m stop
16:40 — 17:55
FI309
Icelandair
Hagersten — Reykjavik
1h 50m stop
19:45 — 20:40
FI683
Icelandair
Reykjavik — Seattle
|
21h 30m including layover |
Find flight
from$534 |
|
11:00 — 20:40
|
11:00 — 14:35
D84452
Djibouti Airlines
London — Hagersten
2h 5m stop
16:40 — 17:55
FI309
Icelandair
Hagersten — Reykjavik
1h 50m stop
19:45 — 20:40
FI683
Icelandair
Reykjavik — Seattle
|
17h 40m including layover |
Find flight
from$523 |
|
12:40 — 10:39
+1 day
|
12:40 — 15:40
TS123
Air Transat
London — Toronto
4h 25m stop
20:05 — 21:50
PD655
Porter Airlines
Toronto — Las Vegas
9h 55m stop
07:45 — 10:39
HA6135
Hawaiian Airlines
Las Vegas — Seattle
|
29h 59m including layover |
Find flight
from$536 |
|
13:05 — 08:54
+1 day
|
13:05 — 15:55
Z0701
Z0
London — Newark
4h 4m stop
19:59 — 22:58
AS287
Alaska Airlines
Newark — Los Angeles
7h 2m stop
06:00 — 08:54
AS1293
Alaska Airlines
Los Angeles — Seattle
|
27h 49m including layover |
Find flight
from$448 |
|
13:55 — 19:32
+1 day
|
13:55 — 19:45
W95747
Wizz Air UK
London — Athens
14h stop
09:45 — 13:15
N0511
N0
Athens — Los Angeles
3h 26m stop
16:41 — 19:32
F91177
Frontier Airlines
Los Angeles — Seattle
|
37h 37m including layover |
Find flight
from$440 |
|
14:40 — 20:35
+1 day
|
14:40 — 17:05
VY8947
Vueling
London — Paris
3h 10m stop
20:15 — 22:15
N0301
N0
Paris — Newark
19h 15m stop
17:30 — 20:35
HA4901
Hawaiian Airlines
Newark — Seattle
|
37h 55m including layover |
Find flight
from$418 |
|
14:40 — 19:54
+1 day
|
14:40 — 17:05
VY8947
Vueling
London — Paris
3h 10m stop
20:15 — 22:15
N0301
N0
Paris — New York
18h 25m stop
16:40 — 19:54
HA4926
Hawaiian Airlines
New York — Seattle
|
37h 14m including layover |
Find flight
from$440 |
|
19:40 — 08:54
+2 days
|
19:40 — 22:05
VY8945
Vueling
London — Paris
18h 35m stop
16:40 — 19:05
N0311
N0
Paris — Los Angeles
10h 55m stop
06:00 — 08:54
HA6202
Hawaiian Airlines
Los Angeles — Seattle
|
45h 14m including layover |
Find flight
from$401 |
|
19:40 — 21:18
+2 days
|
19:40 — 22:05
VY8945
Vueling
London — Paris
20h 45m stop
18:50 — 21:00
BF720
Bluebird Cargo
Paris — Newark
21h 13m stop
18:13 — 21:18
HA4901
Hawaiian Airlines
Newark — Seattle
|
57h 38m including layover |
Find flight
from$425 |
|
21:20 — 21:36
+1 day
|
21:20 — 00:55
W46004
Aero Services Executive
London — Rome
10h 40m stop
11:35 — 15:15
N0411
N0
Rome — Los Angeles
3h 30m stop
18:45 — 21:36
HA6198
Hawaiian Airlines
Los Angeles — Seattle
|
32h 16m including layover |
Find flight
from$381 |
|
21:20 — 21:18
+2 days
|
21:20 — 00:55
W46004
Aero Services Executive
London — Rome
18h 10m stop
19:05 — 22:30
N0401
N0
Rome — Newark
19h 43m stop
18:13 — 21:18
HA4901
Hawaiian Airlines
Newark — Seattle
|
55h 58m including layover |
Find flight
from$406 |
|
22:15 — 19:32
+1 day
|
22:15 — 03:50
A3609
Aegean Airlines
London — Athens
5h 55m stop
09:45 — 13:15
N0511
N0
Athens — Los Angeles
3h 26m stop
16:41 — 19:32
F91177
Frontier Airlines
Los Angeles — Seattle
|
29h 17m including layover |
Find flight
from$523 |
Flight Information
Below we will explain in detail what the flights cost on the destination from London to Seattle depends on and how to choose the most interesting flight option for you.
Distance between London and Seattle is 7714 miles. Time difference between the cities is 8h. Airplanes depart 06:00 to 22:15 from 10 London airports and arrive 06:00 to 22:15 to 3 Seattle airports. Average flight time is 9h 45m.
- The fastest flight 9h 45m
- Average flight time 9h 45m
- The earliest flight 06:00
- The latest flight 22:15
- Distance 4794 ml
The cheapest months to travel to Seattle are august (from 381 $), september (from 401 $), june (from 465 $).
The most expensive months are november (from 872 $), february (from 798 $), december (from 797 $).
What is the lowest airfare London to Seattle?
The cheapest plane ticket found by our users is $381. This airfare is for economy class on one-way W46004 flight by Aero Services Executive for August 28, 2025 which leaves Gatwick in London at 21:20 am and arrives at Seattle Seattle-Tacoma Intl at 21:36.
Popular Airlines on the Route
The flight London — Seattle is served by 25 regular airlines and 8 low-cost airlines. Most of the flights on this route are operated by British Airways - 22 departures per week at the price of from $ 508 . And the most expensive tickets are offered by British Airways airline - from $ 1696.
Direct flights
There are 7 nonstop flights on the route. The fastest direct flight is BA53 by British Airways takes 9h 45m and the cheapest is W46004 by Aero Services Executive for $508.
- from $508Find
- EI - Aer Lingusfrom $1088Find
- AY - Finnairfrom $1039Find
- IB - Iberiafrom $553Find
Connecting Flights
There are 136 flights with layovers on the route. The fastest connecting flight is EI163 by Aer Lingus takes 12h 25m and the cheapest is W46004 by Aero Services Executive for $381.
- from $534Find
- W9 - Wizz Air UKfrom $440Find
- VY - Vuelingfrom $401Find
- FI - Icelandairfrom $654Find
- EI - Aer Lingusfrom $501Find
- AF - Air Francefrom $748Find
- FR - Ryanairfrom $642Find
- UA - United Airlinesfrom $784Find
- A3 - Aegean Airlinesfrom $523Find
- EW - Eurowings AGfrom $687Find
- D8 - Djibouti Airlinesfrom $523Find
- DY - Norwegianfrom $656Find
Airports
You can fly from London to Seattle from 10 airports (London City, London-Waterloo, Heathrow, Luton, British Rail Terminal, London Biggin Hill, Stansted, Gatwick, Ebbsfleet International Rail St, Stratford International Rail St).
London airports
- London City-LCYfrom $601Find
- London-Waterloo-QQWFind
- Heathrow-LHRfrom $501Find
- Luton-LTNfrom $521Find
- British Rail Terminal-ZLXFind
- London Biggin Hill-BQHFind
- Stansted-STNfrom $624Find
- Gatwick-LGWfrom $381Find
- Ebbsfleet International Rail St-XQEFind
- Stratford International Rail St-XOFFind
Seattle airports
- Boeing Field International Airport-BFIFind
- Seattle-Tacoma Intl-SEAFind
- Kenmore Air Harbor SPB-LKEFind
Airplanes
There are flights to Seattle from London by 25 airlines that use 1 aircraft brands. They range from huge modern airplanes to small-sized.
- Boeing 767-300 (winglets)from $658Find
Top International Destinations from London
Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.
- from $55Find
- from $75Find
- from $313Find
- from $70Find
- from $60Find
- from $79Find
- from $57Find
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- from $69Find
- from $59Find
How to book a plane ticket yourself?

- Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
- Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
- Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
- Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
- That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.
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