Welcome | Sign out

Cheap Flights from Seattle to London - SEA to LON (reverse)

Popular Flights from Seattle to London

  • Airfare from Seattle to London on Brussels from $1010 round trip
  • Airfare from Seattle to London on Condor from $1021 round trip
  • Airfare from Seattle to London on BMI from $1037 round trip
  • Airfare from Seattle to London on SWISS from $1045 round trip
  • Airfare from Seattle to London on Alitalia from $1046 round trip

Did You Know?

  • Iberia has 1 nonstop flight between Seattle, WA and London, GB.
  • 258 flights per week fly out of Seattle, WA connecting to London, GB
  • 259,629 seats are available per day to fly out of Seattle, WA connecting to London, GB
  • 18 airlines operate between Seattle, WA and London, GB
  • The shortest flight between Seattle, WA and London, GB on Alitalia is 5,979 miles.
  • American has the most nonstop flights between Seattle, WA and London, GB.
  • The smallest aircraft operated by Gulf Air flying between Seattle, WA and London, GB is a M80 with 140 seats.
  • The largest aircraft operated by TAP flying between Seattle, WA and London, GB is a 737 with 173 seats.

Advance Purchase Prices from Seattle to London

  • Carrier
    0 Days
    1 Day
    3 Days
    7 Days
    10 Days
    14 Days
    21 Days
  • Air Canada
    $1861
    $1861
    $1535
    $814
    $814
    $2688
    $2688
  • Air France
    $1741
    $1741
    $1398
    $878
    $878
    $1571
    $1571
  • Alitalia
    $1932
    $1932
    $1405
    $885
    $885
    $1578
    $1578
  • American
    $2580
    $2580
    $1454
    $814
    $814
    $814
    $814
  • BMI
    $1875
    $1875
    $1549
    $828
    $828
    $2968
    $2968
  • British Airways
    $3714
    $3714
    $1468
    $828
    $828
    $828
    $828
  • Brussels
    $1956
    $1956
    $1630
    $889
    $889
    $2783
    $2783
  • Continental
    $1861
    $1861
    $1535
    $814
    $814
    $2688
    $2688
  • Delta
    $1863
    $1863
    $1377
    $857
    $857
    $1550
    $1550
  • Iberia
     
     
    $1454
    $814
    $814
    $5267
    $5267
  • KLM
    $1904
    $1904
    $1377
    $857
    $857
    $2921
    $2921
  • Lufthansa
    $1919
    $1919
    $1593
    $872
    $872
    $872
    $872
  • SAS
     
    $1112
    $1112
    $1112
    $1112
    $1112
    $1112
  • US Airways
    $1488
    $1488
    $1348
    $828
    $828
    $828
    $828
  • United
    $1861
    $1861
    $1535
    $814
    $814
    $2688
    $2688

Daily Non-stop Flight Schedules from Seattle/Tacoma International to Heathrow

  • Airline
    Mon
    Tue
    Wed
    Thu
    Fri
    Sat
    Sun
    Earliest Flight
    Latest Flight
  • British Airways
    1
    1
    2
    1
    2
    1
    2
    2:10 PM
    6:10 PM
Cheap Flights from Seattle to London, from $1010 Round trip from SEA to LON