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Cheap Flights from Seattle to Illinois

Did You Know?

Minneapolis-St Paul, MN has the most direct flights to Illinois.
There are 43 carriers flying into Illinois.
There are 65 connecting cities from Seattle, WA to Illinois.
The most popular destination from Seattle, WA is Portland International.
Minneapolis-St Paul, MN is the most popular connecting city from Seattle, WA to Illinois.
The longest flight from Seattle, WA to Illinois is 1,727 miles.
The shortest flight from Seattle, WA to Illinois is 1,727 miles.
There are 242 direct flights from Seattle to Illinois.

Cheap Domestic Flights from Seattle - SEA

Flights
Airline
Lowest Price
Delta, Alaska, US Airways, American, Sun Ctry, United, Frontier, AirTran, Virgin America
$264
Alaska, US Airways, American, United, Delta
$333
American, Frontier, Delta
$264
American
$333
United, American
$333
United, Delta, US Airways, American
$333
Cheap Flights from Seattle to Illinois - from $264 Round trip from SEA to IL