Airlines flying to Illinois are listed here. Click on the links to browse cheap flights to Illinois and then compare the prices of other airlines flying to Illinois.
Skyscanner allows you to find the cheapest flights to Illinois (from hundreds of airlines including American Airlines, United, Delta) without having to enter specific dates or even destinations, making it the best place to find cheap flights for your trip.
To book a cheap flight to Illinois, choose from the list of flights to Illinois below, or use the links at the side of the page to browse for more flight information. To start a new flight search, use the search controls above.