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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
CAD796

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
$322
AirTran, United, Delta, US Airways, Alaska, American, JetBlue
$162
JetBlue, American, US Airways, Alaska, Delta, United
$271
AirTran, Delta, United, US Airways
$379
United, Delta, American
$334
Delta, Alaska, United, Sun Country
$482
US Airways, United, Delta
$304
WestJet, Air Canada
CAD569
WestJet, Air Canada
CAD572
US Airways, Alaska, American, United, Delta, Frontier, AirTran
$266
WestJet
CAD629
Frontier, American, US Airways, Delta, United, Alaska
$322
Alaska, American, United, Delta, JetBlue, AirTran, US Airways
$337
WestJet, Air Canada
CAD780
Air Canada, WestJet
CAD585
JetBlue, United, Delta, Alaska, US Airways, American
$329
American, US Airways, AirTran, Delta, United, Alaska, Frontier
$266
Air Canada, WestJet
CAD858

Cheap International Flights to Seattle - SEA

Flights
Airline
Lowest Price
US Airways, Air Canada, Alaska, Delta, American, United
CAD480
Air Canada, Alaska, WestJet, Delta, US Airways, American, United
$441
Delta, US Airways, Air Canada, Alaska, WestJet, United, American
$457
United, Delta, Alaska, Air Canada, WestJet, American, US Airways
$466
Delta, US Airways, Air Canada, Alaska, United, American
CAD507
United, Air Canada, Delta, Alaska, US Airways, American, WestJet
$657
Air Canada, United, Delta, US Airways, WestJet, Alaska, American
CAD446
American, Air Canada, Delta, United, US Airways
$468
Cheap Flights from London to Seattle, WA, United States, from CAD656 Round trip from YXU to SEA