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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
CAD657

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
$399
US Airways, Alaska, Delta, Frontier, United, American
$234
AirTran, United, Delta, US Airways, Alaska, American, JetBlue
$320
JetBlue, American, US Airways, Alaska, Delta, United
$320
AirTran, Delta, United, US Airways
$392
United, Delta, American
$317
Delta, Alaska, United, Sun Country
$340
US Airways, United, Delta
$270
WestJet, Air Canada
CAD579
WestJet, Air Canada
CAD583
US Airways, Alaska, American, United, Delta, Frontier, AirTran
$289
WestJet
CAD640
Frontier, American, US Airways, Delta, United, Alaska
$351
Alaska, American, United, Delta, JetBlue, AirTran, US Airways
$366
WestJet, Air Canada
CAD794
Air Canada, WestJet
CAD594
JetBlue, United, Delta, Alaska, US Airways, American
$348
American, US Airways, AirTran, Delta, United, Alaska, Frontier
$289
Air Canada, WestJet
CAD827

Cheap International Flights to Seattle - SEA

Flights
Airline
Lowest Price
US Airways, Air Canada, Alaska, Delta, American, United
CAD466
Air Canada, Alaska, WestJet, Delta, US Airways, American, United
$331
Delta, US Airways, Air Canada, Alaska, WestJet, United, American
$483
United, Delta, Alaska, Air Canada, WestJet, American, US Airways
$480
Delta, US Airways, Air Canada, Alaska, United, American
CAD512
United, Air Canada, Delta, Alaska, US Airways, American, WestJet
$690
Air Canada, United, Delta, US Airways, WestJet, Alaska, American
CAD523
American, Air Canada, Delta, United, US Airways
$494
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Cheap Flights from London to Seattle, WA, United States, from CAD649 Round trip from YXU to SEA