Take off on cheap flights from London to Seattle, your adventure starts now!

Cheapest dates for London - Seattle tickets

  • any
  • May 2019
  • June 2019
  • July 2019
  • August 2019
  • September 2019
  • October 2019
  • November 2019
  • December 2019
  • January 2020
  • February 2020
  • March 2020
  • April 2020
  • any
  • May 2019
  • June 2019
  • July 2019
  • August 2019
  • September 2019
  • October 2019
  • November 2019
  • December 2019
  • January 2020
  • February 2020
  • March 2020
  • April 2020
  • price
  • month of departure
  • month of return
£299
United Airlines outward: 10-Sep-2019
08:55 LHR » 06:28 SEA
United Airlines 1 stop (21h33m)
Lufthansa inbound: 19-Sep-2019
17:15 SEA » 07:45 LHR
Lufthansa 1 stop (14h30m)
£305
Swiss outward: 27-Aug-2019
09:40 LHR » 05:42 SEA
Swiss 2 stops (20h02m)
United Airlines inbound: 18-Sep-2019
08:34 SEA » 21:55 LHR
United Airlines 1 stop (13h21m)
£305
Swiss outward: 27-Aug-2019
09:40 LHR » 05:42 SEA
Swiss 2 stops (20h02m)
United Airlines inbound: 18-Sep-2019
08:34 SEA » 21:55 LHR
United Airlines 1 stop (13h21m)
£309
Virgin Atlantic outward: 17-Sep-2019
11:30 LHR » 04:46 SEA
Virgin Atlantic 1 stop (17h16m)
Virgin Atlantic inbound: 30-Sep-2019
22:50 SEA » 21:10 LHR
Virgin Atlantic 1 stop (22h20m)
£309
Virgin Atlantic outward: 25-Jun-2019
10:40 LHR » 05:33 SEA
Virgin Atlantic 1 stop (18h53m)
Virgin Atlantic inbound: 09-Jul-2019
16:40 SEA » 08:20 LHR
Virgin Atlantic 1 stop (15h40m)
£310
Virgin Atlantic outward: 25-Jun-2019
10:40 LHR » 05:33 SEA
Virgin Atlantic 1 stop (18h53m)
Virgin Atlantic inbound: 09-Jul-2019
16:40 SEA » 08:20 LHR
Virgin Atlantic 1 stop (15h40m)
£311
Virgin Atlantic outward: 25-Jun-2019
10:40 LHR » 05:33 SEA
Virgin Atlantic 1 stop (18h53m)
Virgin Atlantic inbound: 09-Jul-2019
16:40 SEA » 08:20 LHR
Virgin Atlantic 1 stop (15h40m)
£311
United Airlines outward: 01-Jul-2019
09:35 LHR » 03:39 SEA
United Airlines 1 stop (18h04m)
United Airlines inbound: 08-Jul-2019
19:05 SEA » 12:05 LHR
United Airlines 1 stop (17h)
£311
Virgin Atlantic outward: 25-Jun-2019
10:40 LHR » 05:33 SEA
Virgin Atlantic 1 stop (18h53m)
Virgin Atlantic inbound: 09-Jul-2019
16:40 SEA » 08:20 LHR
Virgin Atlantic 1 stop (15h40m)
£312
Air Canada outward: 19-Jun-2019
11:05 LHR » 18:24 SEA
Air Canada 1 stop (31h19m)
Air Canada inbound: 03-Jul-2019
05:20 SEA » 14:25 LHR
Air Canada 1 stop (33h05m)
£315
United Airlines outward: 19-Jun-2019
11:25 LHR » 05:58 SEA
United Airlines 1 stop (18h33m)
Unknown Company inbound: 04-Jul-2019
08:45 SEA » 21:55 LHR
Unknown Company 1 stop (13h10m)
£319
Lufthansa outward: 30-Sep-2019
08:30 LHR » 05:13 SEA
Lufthansa 1 stop (20h43m)
Lufthansa inbound: 08-Oct-2019
17:15 SEA » 07:45 LHR
Lufthansa 1 stop (14h30m)
£320
Virgin Atlantic outward: 25-Jun-2019
10:40 LHR » 05:33 SEA
Virgin Atlantic 1 stop (18h53m)
Virgin Atlantic inbound: 09-Jul-2019
16:40 SEA » 08:20 LHR
Virgin Atlantic 1 stop (15h40m)
£323
United Airlines outward: 19-Jun-2019
11:25 LHR » 05:58 SEA
United Airlines 1 stop (18h33m)
Unknown Company inbound: 04-Jul-2019
08:45 SEA » 21:55 LHR
Unknown Company 1 stop (13h10m)
£326
United Airlines outward: 15-Sep-2019
08:55 LHR » 06:47 SEA
United Airlines 1 stop (21h52m)
United Airlines inbound: 30-Sep-2019
07:43 SEA » 07:20 LHR
United Airlines 1 stop (23h37m)
£328
Air Canada outward: 26-Jun-2019
11:05 LHR » 18:24 SEA
Air Canada 1 stop (31h19m)
Unknown Company inbound: 02-Jul-2019
08:45 SEA » 21:55 LHR
Unknown Company 1 stop (13h10m)
£328
United Airlines outward: 06-Sep-2019
08:55 LHR » 02:06 SEA
United Airlines 1 stop (17h11m)
United Airlines inbound: 18-Sep-2019
15:20 SEA » 08:10 LHR
United Airlines 1 stop (16h50m)
£331
United Airlines outward: 01-Jul-2019
11:05 LHR » 02:59 SEA
United Airlines 1 stop (15h54m)
United Airlines inbound: 08-Jul-2019
15:00 SEA » 07:55 LHR
United Airlines 1 stop (16h55m)
£331
United Airlines outward: 25-Jun-2019
11:05 LHR » 23:39 SEA
United Airlines 1 stop (12h34m)
United Airlines inbound: 10-Jul-2019
08:40 SEA » 21:55 LHR
United Airlines 1 stop (13h15m)
£334
United Airlines outward: 15-Sep-2019
08:55 LHR » 06:47 SEA
United Airlines 1 stop (21h52m)
United Airlines inbound: 30-Sep-2019
07:43 SEA » 07:20 LHR
United Airlines 1 stop (23h37m)
£335
United Airlines outward: 03-Jun-2019
11:25 LHR » 06:56 SEA
United Airlines 1 stop (19h31m)
Lufthansa inbound: 10-Jun-2019
17:15 SEA » 21:55 LHR
Lufthansa 1 stop (28h40m)
£338
United Airlines outward: 12-Sep-2019
08:55 LHR » 06:28 SEA
United Airlines 1 stop (21h33m)
United Airlines inbound: 19-Sep-2019
15:54 SEA » 08:40 LHR
United Airlines 1 stop (16h46m)
£340
United Airlines outward: 11-Jun-2019
11:25 LHR » 05:45 SEA
United Airlines 1 stop (18h20m)
Lufthansa inbound: 18-Jun-2019
22:00 SEA » 07:45 LHR
Lufthansa 1 stop (33h45m)
£342
United Airlines outward: 03-Jun-2019
11:25 LHR » 06:56 SEA
United Airlines 1 stop (19h31m)
Lufthansa inbound: 10-Jun-2019
17:15 SEA » 21:55 LHR
Lufthansa 1 stop (28h40m)
£343
Lufthansa outward: 17-Jun-2019
13:15 LHR » 05:28 SEA
Lufthansa 1 stop (16h13m)
United Airlines inbound: 24-Jun-2019
20:25 SEA » 14:25 LHR
United Airlines 1 stop (18h)
£344
Norwegian Air UK outward: 04-Oct-2019
10:50 LGW » 20:45 SEA
Norwegian Air UK direct (9h55m)
Norwegian Air UK inbound: 25-Oct-2019
22:45 SEA » 08:00 LGW
Norwegian Air UK direct (9h15m)
£344
Norwegian Air UK outward: 04-Oct-2019
10:50 LGW » 20:45 SEA
Norwegian Air UK direct (9h55m)
Norwegian Air UK inbound: 25-Oct-2019
22:45 SEA » 08:00 LGW
Norwegian Air UK direct (9h15m)
£344
Norwegian Air UK outward: 04-Oct-2019
10:50 LGW » 20:45 SEA
Norwegian Air UK direct (9h55m)
Norwegian Air UK inbound: 25-Oct-2019
22:45 SEA » 08:00 LGW
Norwegian Air UK direct (9h15m)
£345
Norwegian Air UK outward: 04-Oct-2019
10:50 LGW » 20:45 SEA
Norwegian Air UK direct (9h55m)
Norwegian Air UK inbound: 25-Oct-2019
22:45 SEA » 08:00 LGW
Norwegian Air UK direct (9h15m)
£345
Air Canada outward: 26-Jun-2019
11:05 LHR » 18:24 SEA
Air Canada 1 stop (31h19m)
Lufthansa inbound: 01-Jul-2019
17:15 SEA » 07:45 LHR
Lufthansa 1 stop (14h30m)
Return
Departure
30 June Jun Sunday $retDate.dayShortName
01 July Jul Monday $retDate.dayShortName
02 July Jul Tuesday $retDate.dayShortName
03 July Jul Wednesday $retDate.dayShortName
04 July Jul Thursday $retDate.dayShortName
05 July Jul Friday $retDate.dayShortName
06 July Jul Saturday $retDate.dayShortName
22 June Jun Saturday $outDate.dayShortName
£406
23 June Jun Sunday $outDate.dayShortName
24 June Jun Monday $outDate.dayShortName
25 June Jun Tuesday $outDate.dayShortName
26 June Jun Wednesday $outDate.dayShortName
£336 £320 £442 £494 £491 £446
27 June Jun Thursday $outDate.dayShortName
£1060 £383
28 June Jun Friday $outDate.dayShortName
£729 £661 £613
Choose when you'd like to depart to Seattle (USA):
Find the cheapest London Seattle flight by browsing the dates below to find alternative flight prices found in the last days. To launch a flight search for London - Seattle with these new dates, click on an offer. Want to depart from another city? Choose:

Airlines operating flights from London to Seattle

  • any
  • May 2019
  • June 2019
  • July 2019
  • August 2019
  • September 2019
  • October 2019
  • November 2019
  • December 2019
  • January 2020
  • February 2020
  • March 2020
  • April 2020
  • all
  • Aer Lingus
  • Air Canada
  • Air France
  • Alitalia
  • British Airways
  • Brussels Airlines
  • Finnair
  • Iberia
  • Icelandair
  • KLM
  • Lufthansa
  • Swiss
  • Turkish Airlines
  • United Airlines
  • Virgin Atlantic
  • WestJet
outbound: 13-Jun-2019
WestJet 1 stop
return: 22-Jun-2019
Alaska Airlines 1 stop
outbound: 22-Sep-2019
Air Canada 1 stop
return: 04-Oct-2019
United Airlines 1 stop
outbound: 22-Sep-2019
Virgin Atlantic 1 stop
return: 04-Oct-2019
Virgin Atlantic 1 stop
outbound: 07-Jun-2019
British Airways 1 stop
return: 13-Jun-2019
British Airways 1 stop
outbound: 24-Aug-2019
Lufthansa 2 stops
return: 31-Aug-2019
United Airlines 2 stops
outbound: 24-Aug-2019
United Airlines 1 stop
return: 31-Aug-2019
Lufthansa 1 stop
outbound: 15-Jul-2019
Brussels Airlines 1 stop
return: 26-Jul-2019
United Airlines 1 stop
outbound: 30-May-2019
Icelandair 1 stop
return: 06-Jun-2019
Icelandair 1 stop
outbound: 25-Jul-2019
Finnair 1 stop
return: 16-Aug-2019
British Airways 1 stop
outbound: 27-Aug-2019
Swiss 2 stops
return: 17-Sep-2019
United Airlines 1 stop
outbound: 13-Sep-2019
Iberia 1 stop
return: 29-Sep-2019
Iberia direct
outbound: 27-Nov-2019
KLM 1 stop
return: 02-Dec-2019
Delta Air Lines 1 stop
outbound: 28-Jun-2019
Aer Lingus 1 stop
return: 30-Jun-2019
Aer Lingus 1 stop
outbound: 01-Aug-2019
Alitalia 2 stops
return: 08-Aug-2019
Alitalia 2 stops
outbound: 18-Jun-2019
Air France 1 stop
return: 25-Jun-2019
Air France 1 stop
outbound: 19-Sep-2019
Turkish Airlines 2 stops
return: 09-Oct-2019
Turkish Airlines 2 stops

About London - Seattle flights

Average flight duration: 9h39m (direct flight)

  • Arrival city:
  • Seattle, USA
  • Airport(s):
  • Kenmore Air Harbor Seaplane Base (LKE)
  • Seattle–Tacoma International Airport (SEA)
  • Local time:
  • 25-May-2019 10:10, GMT-7
  • Weather:
  • min. 9ºC, max. 20ºC
  • Departure city:
  • London, United Kingdom
  • Airport(s):
  • London City Airport (LCY)
  • Heathrow Airport (LHR)
  • Gatwick Airport (LGW)
  • Luton Airport (LTN)
  • Stansted Airport (STN)
  • Southend Airport (SEN)
  • Local time:
  • 25-May-2019 18:10, GMT+1
  • Weather:
  • min. 11ºC, max. 20ºC

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