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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
CAD684

Cheap Domestic Flights to Seattle - SEA

Flights
Airline
Lowest Price
AirTran, Frontier, American, United, Delta, US Airways, Alaska
$289
Delta, Alaska, United, US Airways, American, JetBlue, AirTran
$415
US Airways, Alaska, Delta, Frontier, United, American
$230
AirTran, United, Delta, US Airways, Alaska, American, JetBlue
$331
JetBlue, American, US Airways, Alaska, Delta, United
$331
AirTran, Delta, United, US Airways
$403
United, Delta, American
$320
Delta, Alaska, United, Sun Country
$459
US Airways, United, Delta
$331
WestJet, Air Canada
CAD538
WestJet, Air Canada
CAD608
US Airways, Alaska, American, United, Delta, Frontier, AirTran
$289
WestJet
CAD629
Frontier, American, US Airways, Delta, United, Alaska
$401
Alaska, American, United, Delta, JetBlue, AirTran, US Airways
$377
WestJet, Air Canada
CAD684
Air Canada, WestJet
CAD616
JetBlue, United, Delta, Alaska, US Airways, American
$338
American, US Airways, AirTran, Delta, United, Alaska, Frontier
$289
Air Canada, WestJet
CAD911

Cheap International Flights to Seattle - SEA

Flights
Airline
Lowest Price
US Airways, Air Canada, Alaska, Delta, American, United
CAD474
Air Canada, Alaska, WestJet, Delta, US Airways, American, United
$324
Delta, US Airways, Air Canada, Alaska, WestJet, United, American
$499
United, Delta, Alaska, Air Canada, WestJet, American, US Airways
$471
Delta, US Airways, Air Canada, Alaska, United, American
CAD533
United, Air Canada, Delta, Alaska, US Airways, American, WestJet
$685
Air Canada, United, Delta, US Airways, WestJet, Alaska, American
CAD554
American, Air Canada, Delta, United, US Airways
$510
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Cheap Flights from London to Seattle, WA, United States, from CAD711 Round trip from YXU to SEA