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$582
outward: Oct 10, 2018
1:00a SEA » 12:45p LHR
Icelandair 1 stop (11h45m)
inbound: Oct 29, 2018
1:05p LGW » 1:55a SEA
Icelandair 1 stop (12h50m)
$585
outward: Oct 9, 2018
4:00p SEA » 11:10a LHR
United Airlines 1 stop (19h10m)
inbound: Oct 29, 2018
3:30p LHR » 4:53a SEA
United Airlines 1 stop (13h23m)
$598
outward: Oct 9, 2018
4:26p SEA » 12:05p LHR
Finnair 1 stop (19h39m)
inbound: Oct 29, 2018
5:45p LGW » 6:58p SEA
British Airways 1 stop (25h13m)
$598
outward: Oct 10, 2018
8:09a SEA » 9:10p LHR
Unknown Company 1 stop (13h01m)
inbound: Oct 29, 2018
11:35a LGW » 6:24p SEA
Unknown Company 1 stop (30h49m)
$598
outward: Oct 9, 2018
4:26p SEA » 9:20a LHR
Finnair 1 stop (16h54m)
inbound: Oct 29, 2018
5:45p LGW » 6:58p SEA
British Airways 1 stop (25h13m)
$600
outward: Oct 10, 2018
8:09a SEA » 9:10p LHR
Unknown Company 1 stop (13h01m)
inbound: Oct 29, 2018
11:35a LGW » 6:24p SEA
Unknown Company 1 stop (30h49m)
Return
Departure
Find the cheapest Seattle London flight by browsing the dates below to find alternative flight prices found in the last days. To launch a flight search for Seattle - London with these new dates, click on an offer. Want to depart from another city? Choose: Las Vegas - London New York - London Miami - London Chicago - London San Francisco - London See more routes

Airlines operating flights from Seattle to London

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Travel tips for flights Seattle - London

Average flight duration: 19h05m (flight with stopovers)

  • Arrival 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:
  • Jul 18, 2018 6:00 AM, GMT+1
  • Weather:
  • min. 66ºF, max. 78ºF
  • Departure city:
  • Seattle, USA
  • Airport(s):
  • Kenmore Air Harbor Seaplane Base (LKE)
  • Seattle–Tacoma International Airport (SEA)
  • Local time:
  • Jul 17, 2018 10:00 PM, GMT-7
  • Weather:
  • min. 59ºF, max. 75ºF