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

Find cheap airline tickets from London to Seattle by date

  • any
  • October 2019
  • November 2019
  • December 2019
  • January 2020
  • February 2020
  • March 2020
  • April 2020
  • May 2020
  • June 2020
  • July 2020
  • August 2020
  • September 2020
  • any
  • October 2019
  • November 2019
  • December 2019
  • January 2020
  • February 2020
  • March 2020
  • April 2020
  • May 2020
  • June 2020
  • July 2020
  • August 2020
  • September 2020
  • price
  • month of departure
  • month of return
$483
Air Canada outward: Oct 29, 2019
10:00a LHR » 4:48a SEA
Air Canada 1 stop (18h48m)
United Airlines inbound: Nov 5, 2019
6:55p SEA » 12:20p LHR
United Airlines 1 stop (17h25m)
$483
Air Canada outward: Oct 29, 2019
10:00a LHR » 4:48a SEA
Air Canada 1 stop (18h48m)
United Airlines inbound: Nov 5, 2019
8:10p SEA » 12:20p LHR
United Airlines 1 stop (16h10m)
Return
Departure
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

Sorry! We haven't found any airline tickets from London to Seattle. Try launching another search above.

Travel tips for flights London - Seattle

Average flight duration: 18h06m (flight with stopovers)

  • Arrival city:
  • Seattle, USA
  • Airport(s):
  • Kenmore Air Harbor Seaplane Base (LKE)
  • Seattle–Tacoma International Airport (SEA)
  • Local time:
  • Oct 18, 2019 8:59 AM, GMT-7
  • Weather:
  • min. 46ºF, max. 53ºF
  • 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:
  • Oct 18, 2019 4:59 PM, GMT+1
  • Weather:
  • min. 52ºF, max. 58ºF