Welcome | Sign out

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
$264
Alaska, US Airways, American, United, Delta
$335
American, Frontier, Delta
$266
United, Delta, US Airways, American
$335
American
$335
United, American
$335

Cheap Domestic Flights to Illinois - IL

Flights
Airline
Lowest Price
American, United, Frontier, Delta, Alaska, Virgin America, Spirit, US Airways
$264
American, Frontier, Delta, Alaska
$264
American, US Airways, United, Delta, Alaska
$452
United, American, US Airways, Delta
$335
US Airways, Delta, United, American, Alaska
$335
Delta, Alaska
$444
American, United
$335
American, Delta, Alaska
$452
American
$335
Delta, Frontier, American
$266
US Airways, Alaska, United, Delta, American
$305
American, Delta, Alaska
$347
Delta, American
$347

Cheap International Flights to Illinois - IL

Flights
Airline
Lowest Price
American, United, Alaska, Air Canada, Delta, US Airways, WestJet
CAD324
Air Canada, Delta, United, Alaska, American, WestJet
CAD449
United, Alaska, American, Delta
CAD473
WestJet, Air Canada
CAD443
American, Delta
CAD401
United, Delta, US Airways, American
CAD421
Air Canada, WestJet
CAD449
American
CAD720
American, United
CAD941
Air Canada
CAD1582
Cheap Flights from Seattle to Illinois - from $264 Round trip from SEA to IL