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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
$273
Alaska, US Airways, American, United, Delta
$349
American, Frontier, Delta
$273
United, Delta, US Airways, American
$349
American
$349
United, American
$349

Cheap Domestic Flights to Illinois - IL

Flights
Airline
Lowest Price
American, United, Frontier, Delta, Alaska, Virgin America, Spirit, US Airways
$213
American, Frontier, Delta, Alaska
$404
American, US Airways, United, Delta, Alaska
$478
United, American, US Airways, Delta
$349
US Airways, Delta, United, American, Alaska
$349
Delta, Alaska
$383
American, United
$349
American, Delta, Alaska
$470
American
$349
Delta, Frontier, American
$273
US Airways, Alaska, United, Delta, American
$318
American, Delta, Alaska
$361
Delta, American
$361

Cheap International Flights to Illinois - IL

Flights
Airline
Lowest Price
American, United, Alaska, Air Canada, Delta, US Airways, WestJet
CAD375
Air Canada, Delta, United, Alaska, American, WestJet
CAD427
United, Alaska, American, Delta
CAD517
WestJet, Air Canada
CAD601
American, Delta
CAD421
United, Delta, US Airways, American
CAD458
Air Canada, WestJet
CAD623
American
CAD792
American, United
CAD1041
Air Canada
CAD557
Cheap Flights from Seattle to Illinois - from $273 Round trip from SEA to IL