Cheap Flights from London to Seattle, WA from $337

Return flight: Seattle – London

On Cheapflightsplus.com you will find 13 direct and 992 connecting flights from London to Seattle. You can compare airfare deals from 39 airlines and multiple travel sites from $337, 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.

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 23:10 from 10 London airports and arrive 06:00 to 23:10 to 3 Seattle airports. Average flight time is 9h 50m.

  • The fastest flight 9h 45m
  • Average flight time 9h 50m
  • The earliest flight 06:00
  • The latest flight 23:10
  • Distance 4794 ml

The cheapest months to travel to Seattle are june (from 337 $), august (from 343 $), may (from 351 $).

The most expensive months are november (from 825 $), december (from 755 $), january (from 730 $).

What is the lowest airfare London to Seattle?

The cheapest plane ticket found by our users is $337. This airfare is for economy class on one-way Z0711 flight by Z0 for June 6, 2025 which leaves Gatwick in London at 10:55 am and arrives at Seattle Seattle-Tacoma Intl at 11:33.

Economy class
$337
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Business class
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First class
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Flight Schedule London to Seattle (Washington)

09:50 — 11:35
9h 45m flight time
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from$500
London — Seattle
BA53 British Airways
09:50 — 11:35
9h 45m flight time
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from$524
London — Seattle
IB3509 Iberia
09:50 — 11:35
9h 45m flight time
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from$983
London — Seattle
AY5451 Finnair
10:45 — 14:25+1day
35h 40m flight time
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from$339
10:45 — 14:00 London — Los Angeles
Z0711 Z0
16h stop
06:00 — 07:19 Los Angeles — Las Vegas
NK2683 Spirit Airlines
4h 21m stop
11:40 — 14:25 Las Vegas — Seattle
NK2327 Spirit Airlines
10:45 — 16:50+1day
38h 5m flight time
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from$350
10:55 — 14:10 London — Los Angeles
Z0711 Z0
24h 3m stop
15:05 — 17:56 Los Angeles — Seattle
HA6197 Hawaiian Airlines
10:55 — 11:33+1day
32h 38m flight time
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from$337
10:55 — 14:10 London — Los Angeles
Z0711 Z0
18h 28m stop
08:39 — 11:46 Los Angeles — Seattle
F92175 Frontier Airlines
13:25 — 15:45
10h 20m flight time
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from$559
London — Seattle
AF9904 Air France
13:25 — 15:45
10h 20m flight time
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from$559
London — Seattle
KL4818 KLM
16:30 — 18:20
9h 50m flight time
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from$481
London — Seattle
BA49 British Airways
16:30 — 18:20
9h 50m flight time
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from$985
London — Seattle
IB3507 Iberia
17:25 — 19:45
10h 20m flight time
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from$578
London — Seattle
KL6022 KLM
18:00 — 20:20
10h 20m flight time
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from$610
London — Seattle
VS4036 Virgin Atlantic Airways
18:30 — 20:50
10h 20m flight time
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from$578
London — Seattle
AF3586 Air France
21:20 — 08:53+2days
43h 33m flight time
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from$343
21:20 — 00:55 London — Rome
W46004 Aero Services Executive
10h 40m stop
11:35 — 15:15 Rome — Los Angeles
N0411 N0
14h 45m stop
06:00 — 08:53 Los Angeles — Seattle
AS1293 Alaska Airlines
21:20 — 23:59+1day
34h 39m flight time
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from$350
21:20 — 00:55 London — Rome
W46004 Aero Services Executive
10h 40m stop
11:35 — 15:15 Rome — Los Angeles
N0411 N0
5h 55m stop
21:10 — 23:59 Los Angeles — Seattle
HA4960 Hawaiian Airlines
Full flight schedule will help you in detecting at what time planes fly from London to Seattle. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
*Departure and arrival times - local. Updated on October 23, 2025.

Popular Airlines on the Route

The flight London — Seattle is served by 39 regular airlines and 11 low-cost airlines. Most of the flights on this route are operated by Wizz Air UK - 7 departures per week at the price of from $ 416 . And the most expensive tickets are offered by Virgin Atlantic Airways airline - from $ 1791.

Direct flights

There are 13 nonstop flights on the route. The fastest direct flight is BA53 by British Airways takes 9h 45m and the cheapest is Z0711 by Z0 for $481.

  • KL - KLM
    from $559
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  • EI - Aer Lingus
    from $1030
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  • AF - Air France
    from $559
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  • AY - Finnair
    from $983
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  • IB - Iberia
    from $524
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  • VS - Virgin Atlantic Airways
    from $610
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  • BA - British Airways
    from $481
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See more direct flights

Connecting Flights

There are 992 flights with layovers on the route. The fastest connecting flight is FR339 by Ryanair takes 12h 20m and the cheapest is Z0711 by Z0 for $337.

  • W9 - Wizz Air UK
    from $416
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  • VY - Vueling
    from $358
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  • FI - Icelandair
    from $464
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  • BJ - Nouvelair Tunisie
    from $757
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  • DN - Senegal Airlines
    from $648
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  • FR - Ryanair
    from $479
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  • LX - SWISS International Air Lines
    from $480
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  • UA - United Airlines
    from $742
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  • A1 - G2 Switch Works
    from $764
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  • A3 - Aegean Airlines
    from $493
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  • DY - Norwegian
    from $496
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  • Z0 - Z0
    from $337
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See more connecting flights

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-LCY
    from $569
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  • London-Waterloo-QQW
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  • Heathrow-LHR
    from $444
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  • Luton-LTN
    from $410
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  • British Rail Terminal-ZLX
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  • London Biggin Hill-BQH
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  • Stansted-STN
    from $441
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  • Gatwick-LGW
    from $337
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  • Ebbsfleet International Rail St-XQE
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  • Stratford International Rail St-XOF
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Seattle airports

  • Boeing Field International Airport-BFI
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  • Seattle-Tacoma Intl-SEA
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  • Kenmore Air Harbor SPB-LKE
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How to book a plane 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.
  • 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.

    To find a plane ticket, please select dates.

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