British Airways London to Seattle Flights

Cheapflightsplus.com will find cheap British Airways flights from London to Seattle. Compare airline ticket prices and book air tickets starting from $363 from trusted online travel agencies, web sites and directly from airlines. Check flights schedule of British Airways, arrivals and departure details below.

Find Cheap Airfare London — Seattle (WA) by British Airways

To find cheap tickets choose a day of your departure with attractive price on the graph below and click «Find flights». For round trip flights please click «Check prices for return flight». The cheapest airfare is in june: one-way - $363, two-way – $623.
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Below is a detailed 2025 flight schedule for today, tomorrow and all other days. It may vary depending on season and a day of the week of your desired trip. We recommend booking your itinerary at least 2 weeks prior your travel to get the best price and availability by the airline.
Departure Arrival Flight Details Flight Time Price
4:30 pm — 6:20 pm
4:30 pm — 6:20 pm BA49 British Airways
London — Seattle
9h 50m
Find flight
from$373
9:25 am — 11:10 am
9:25 am — 11:10 am BA53 British Airways
London — Seattle
9h 45m
Find flight
from$388
10:00 am — 8:35 pm
10:00 am — 12:45 pm BA175 British Airways
London — Newark
4h 45m stop
5:30 pm — 8:35 pm HA4901 Hawaiian Airlines
Newark — Seattle
18h 35m
including layover
Find flight
from$468
10:30 am — 6:53 pm
10:30 am — 2:40 pm BA1590 British Airways
London — Dallas
1h 55m stop
4:35 pm — 6:53 pm BA2488 British Airways
Dallas — Seattle
16h 23m
including layover
Find flight
from$388
11:10 am — 8:35 pm
11:10 am — 1:55 pm BA185 British Airways
London — Newark
3h 35m stop
5:30 pm — 8:35 pm HA4901 Hawaiian Airlines
Newark — Seattle
17h 25m
including layover
Find flight
from$485
11:40 am — 4:35 pm
11:40 am — 1:25 pm BA2279 British Airways
London — Vancouver
2h 5m stop
3:30 pm — 4:37 pm BA7540 British Airways
Vancouver — Seattle
12h 55m
including layover
Find flight
from$470
12:00 pm — 5:50 pm
12:10 pm — 1:35 pm BA5959 British Airways
London — Dublin
2h 45m stop
4:30 pm — 6:15 pm BA6149 British Airways
Dublin — Seattle
13h 50m
including layover
Find flight
from$444
12:15 pm — 7:40 pm
12:30 pm — 3:05 pm BA1544 British Airways
London — Chicago
2h 20m stop
5:31 pm — 8:02 pm BA5316 British Airways
Chicago — Seattle
15h 25m
including layover
Find flight
from$405
1:10 pm — 8:02 pm
1:10 pm — 3:55 pm BA299 British Airways
London — Chicago
1h 36m stop
5:31 pm — 8:02 pm BA5316 British Airways
Chicago — Seattle
14h 52m
including layover
Find flight
from$363
1:30 pm — 9:44 pm
1:30 pm — 4:25 pm BA67 British Airways
London — Philadelphia
2h 10m stop
6:35 pm — 9:44 pm BA6730 British Airways
Philadelphia — Seattle
16h 14m
including layover
Find flight
from$397
2:15 pm — 9:59 pm
2:15 pm — 5:25 pm BA287 British Airways
London — San Francisco
2h 18m stop
8:19 pm — 10:36 pm HA7031 Hawaiian Airlines
San Francisco — Seattle
15h 44m
including layover
Find flight
from$430
2:15 pm — 11:35 pm
2:15 pm — 5:25 pm BA287 British Airways
London — San Francisco
3h 54m stop
9:19 pm — 11:35 pm HA7022 Hawaiian Airlines
San Francisco — Seattle
17h 20m
including layover
Find flight
from$430
3:30 pm — 11:50 pm
3:30 pm — 6:15 pm BA297 British Airways
London — Chicago
2h 50m stop
9:05 pm — 11:50 pm BA5767 British Airways
Chicago — Seattle
16h 20m
including layover
Find flight
from$403
3:40 pm — 8:35 pm
3:40 pm — 5:35 pm BA267 British Airways
London — Portland
2h 6m stop
7:40 pm — 8:35 pm BA7536 British Airways
Portland — Seattle
12h 55m
including layover
Find flight
from$456
4:25 pm — 0:44 am
+1 day
4:25 pm — 8:35 pm BA1530 British Airways
London — Dallas
1h 55m stop
10:30 pm — 0:44 am BA2489 British Airways
Dallas — Seattle
16h 19m
including layover
Find flight
from$457
7:40 am — 5:50 pm
7:50 am — 9:10 am BA5951 British Airways
London — Dublin
7h 10m stop
4:30 pm — 6:15 pm BA6149 British Airways
Dublin — Seattle
18h 10m
including layover
Find flight
from$429
8:50 am — 5:50 pm
8:50 am — 10:15 am BA5953 British Airways
London — Dublin
5h 55m stop
4:30 pm — 6:15 pm BA6149 British Airways
Dublin — Seattle
17h
including layover
Find flight
from$429
9:50 am — 5:50 pm
9:50 am — 11:15 am BA5955 British Airways
London — Dublin
4h 55m stop
4:30 pm — 6:15 pm BA6149 British Airways
Dublin — Seattle
16h
including layover
Find flight
from$429
5:30 pm — 9:07 am
+1 day
5:30 pm — 8:10 pm BA275 British Airways
London — Las Vegas
2h 11m stop
10:21 pm — 11:59 pm BA2954 British Airways
Las Vegas — Oakland
7h 1m stop
7:00 am — 9:07 am HA6275 Hawaiian Airlines
Oakland — Seattle
23h 37m
including layover
Find flight
from$604
5:30 pm — 8:04 am
+1 day
5:30 pm — 8:10 pm BA275 British Airways
London — Las Vegas
2h 11m stop
10:21 pm — 11:59 pm BA2954 British Airways
Las Vegas — San Francisco
6h 1m stop
6:00 am — 8:04 am AS981 Alaska Airlines
San Francisco — Seattle
22h 34m
including layover
Find flight
from$607
6:55 am — 8:40 pm
6:55 am — 10:20 am BA776 British Airways
London — Hagersten
6h 20m stop
4:40 pm — 5:55 pm FI309 Icelandair
Hagersten — Reykjavik
1h 50m stop
7:45 pm — 8:40 pm FI683 Icelandair
Reykjavik — Seattle
21h 45m
including layover
Find flight
from$393
6:55 am — 4:00 pm
6:55 am — 9:50 am BA812 British Airways
London — Copenhagen
2h 35m stop
12:25 pm — 2:55 pm AY966 Finnair
Copenhagen — Helsinki
1h 25m stop
4:20 pm — 4:00 pm AY33 Finnair
Helsinki — Seattle
17h 5m
including layover
Find flight
from$422
7:45 am — 4:00 pm
+1 day
7:45 am — 10:50 am BA760 British Airways
London — Oslo
9h 40m stop
8:30 pm — 10:55 pm AY918 Finnair
Oslo — Helsinki
17h 25m stop
4:20 pm — 4:00 pm AY33 Finnair
Helsinki — Seattle
40h 15m
including layover
Find flight
from$466
8:20 pm — 5:50 pm
+1 day
8:20 pm — 11:15 pm BA958 British Airways
London — Munich
12h 10m stop
11:25 am — 1:00 pm EI353 Aer Lingus
Munich — Dublin
3h 10m stop
4:10 pm — 5:50 pm EI53 Aer Lingus
Dublin — Seattle
29h 30m
including layover
Find flight
from$426
*Departure and arrival times are local. Last updated on 06/03/2025

Flight Information

There are 2 flights by British Airways from London to Seattle every week with departures from Gatwick, London City, Heathrow, Luton, Stansted, Stratford International Rail St, Ebbsfleet International Rail St, London Biggin Hill, London-Waterloo, British Rail Terminal. All flights arrive at Seattle-Tacoma Intl, Boeing Field International Airport, Kenmore Air Harbor SPB.

Departures start from 10:00 am to 9:55 pm. Nonstop flight is 9h 45m. The time difference between London and Seattle is 8h.

  • The fastest flight 9h 45m
  • Average flight time 9h 48m
  • The earliest flight 10:00 am
  • The latest flight 9:55 pm
  • Distance 4794 ml

The cheapest months for traveling to Seattle are august (from 485 $), september (from 518 $), october (from 524 $).

The most expensive and popular months are december (from 1 343 $), february (from 1 226 $), january (from 1 174 $).

The cheapest flight by British Airways that our users were able to find is $363. This airfare is economy class on one-way BA299 flight for August 27, 2025 leaving Heathrow in London at 1:10 pm, it includes all taxes and additional fees.

Find same flight?

Other Popular Airlines on the Route

Besides British Airways there are other 37 airline carriers between London and Seattle. Please review schedules and prices from the most popular airlines to find the best airfare deals from London to Seattle.

Nonstop flights

There are 13 direct flights every day from London. Airlines and fares are below:

  • KL - KLM
    from $434
    Find
  • EI - Aer Lingus
    from $800
    Find
  • AF - Air France
    from $434
    Find
  • AY - Finnair
    from $771
    Find
  • IB - Iberia
    from $406
    Find
  • VS - Virgin Atlantic Airways
    from $473
    Find
See more direct flights

Connecting Flights

List of flights with layovers (1 and more stops):

  • W9 - Wizz Air UK
    from $513
    Find
  • VY - Vueling
    from $278
    Find
  • FI - Icelandair
    from $360
    Find
  • DN - Senegal Airlines
    from $504
    Find
  • FR - Ryanair
    from $372
    Find
  • LX - SWISS International Air Lines
    from $372
    Find
  • A1 - G2 Switch Works
    from $594
    Find
  • A3 - Aegean Airlines
    from $383
    Find
  • DY - Norwegian
    from $385
    Find
  • Z0 - Z0
    from $262
    Find
  • OG - Air Onix
    from $342
    Find
See more connecting flights

How to book an air ticket yourself?

How to book an air 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.
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  • 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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