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Cheap Flights from Seattle to Illinois

Did You Know?

American Airlines has 27 nonstop flights between Seattle and Illinois.
The largest aircraft flying nonstop from Seattle to Illinois is the Boeing 777 with 328 seats.
There are no short haul direct flights between Seattle and Illinois.
There is only one nonstop flight from Seattle to Illinois per week on large aircraft.
39% of all flights from Seattle to Illinois arrive during afternoon hours.
There are 79 nonstop flights from Seattle to Illinois.
American Airlines provides 34% of the nonstop flights from Seattle to Illinois.
The shortest nonstop flight between Seattle and Illinois is 1,715 miles.

Cheap Domestic Flights from Seattle - SEA

Flights
Airline
Lowest Price
Delta, Alaska, US Airways, American, Sun Country, United, Frontier, AirTran, Virgin America
$289
Alaska, US Airways, American, United, Delta
$369
American, Frontier, Delta
$369
United, Delta, US Airways, American
$369
American
$369
United, American
$369

Cheap Domestic Flights to Illinois - IL

Flights
Airline
Lowest Price
American, United, Frontier, Delta, Alaska, Virgin America, Spirit, US Airways
$227
American, Frontier, Delta, Alaska
$404
American, US Airways, United, Delta, Alaska
$404
United, American, US Airways, Delta
$369
US Airways, Delta, United, American, Alaska
$369
Delta, Alaska
$371
American, United
$369
American, Delta, Alaska
$390
American
$369
Delta, Frontier, American
$369
US Airways, Alaska, United, Delta, American
$293
American, Delta, Alaska
$382
Delta, American
$382

Cheap International Flights to Illinois - IL

Flights
Airline
Lowest Price
American, United, Alaska, Air Canada, Delta, US Airways, WestJet
CAD412
Air Canada, Delta, United, Alaska, American, WestJet
CAD483
United, Alaska, American, Delta
CAD516
WestJet, Air Canada
CAD518
American, Delta
CAD429
United, Delta, US Airways, American
CAD464
Air Canada, WestJet
CAD536
American
CAD766
American, United
CAD990
Air Canada
CAD486
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Cheap Flights from Seattle to Illinois - from $289 Round trip from SEA to IL