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Cheap Flights from London to Seattle, WA, United States - YXU to SEA

Did You Know?

United Airlines has 490 connecting flights between London, ON and Seattle.
There are 2800 flights from London, ON to Seattle per week.
You must make at least one connection to fly from London, ON to Seattle.
70,839 seats are available per week to fly from London, ON to Seattle.

Cheap Domestic Flights from London - YXU

Flights
Airline
Lowest Price
WestJet, Air Canada
CAD659

Cheap Domestic Flights to Seattle - SEA

Flights
Airline
Lowest Price
AirTran, Frontier, American, United, Delta, US Airways, Alaska
$266
Delta, Alaska, United, US Airways, American, JetBlue, AirTran
$328
US Airways, Alaska, Delta, Frontier, United, American
$331
AirTran, United, Delta, US Airways, Alaska, American, JetBlue
$162
JetBlue, American, US Airways, Alaska, Delta, United
$253
AirTran, Delta, United, US Airways
$366
United, Delta, American
$323
Delta, Alaska, United, Sun Country
$344
US Airways, United, Delta
$267
WestJet, Air Canada
CAD597
WestJet, Air Canada
CAD601
US Airways, Alaska, American, United, Delta, Frontier, AirTran
$266
WestJet
CAD662
Frontier, American, US Airways, Delta, United, Alaska
$331
Alaska, American, United, Delta, JetBlue, AirTran, US Airways
$342
WestJet, Air Canada
CAD821
Air Canada, WestJet
CAD615
JetBlue, United, Delta, Alaska, US Airways, American
$314
American, US Airways, AirTran, Delta, United, Alaska, Frontier
$266
Air Canada, WestJet
CAD710

Cheap International Flights to Seattle - SEA

Flights
Airline
Lowest Price
US Airways, Air Canada, Alaska, Delta, American, United
CAD482
Air Canada, Alaska, WestJet, Delta, US Airways, American, United
$454
Delta, US Airways, Air Canada, Alaska, WestJet, United, American
$469
United, Delta, Alaska, Air Canada, WestJet, American, US Airways
$415
Delta, US Airways, Air Canada, Alaska, United, American
CAD527
United, Air Canada, Delta, Alaska, US Airways, American, WestJet
$650
Air Canada, United, Delta, US Airways, WestJet, Alaska, American
CAD538
American, Air Canada, Delta, United, US Airways
$481
Cheap Flights from London to Seattle, WA, United States, from CAD668 Round trip from YXU to SEA