Cheap flights to Illinois

Compare Illinois flights across hundreds of providers

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Find where to fly in Illinois

You could visit 13 destinations in Illinois – explore your options right here.

Flight deals to Illinois

Find the best prices for one-way or return flights to Illinois's most popular spots.

Flying to Illinois

The things to know before you go.
Cheapest flight found$1,395, Chicago
Cheapest month to flyAugust
Cheapest airport to fly fromMelbourne Tullamarine

Frequently asked questions

Currently, there are no airlines that fly direct to Illinois. But we found flights with one or more stops from $1,385.
Currently, Fiji Airways and American Airlines offer the cheapest flight tickets to Illinois.
We looked at upcoming return flights to Illinois departing over the next 12 months and found that Melbourne Tullamarine Airport to Chicago O'Hare International Airport for $1,385 is the best price.
The cheapest month to fly to Decatur is currently August. The cheapest month to fly to Champaign is currently August. The cheapest month to fly to Chicago O'Hare International is currently August. And the cheapest month to fly to Moline is currently August.
The cheapest day to fly to Chicago O'Hare International is currently Friday, 8 August 2025. The cheapest day to fly to Moline is currently Saturday, 23 August 2025. The cheapest day to fly to Greater Peoria is currently Sunday, 24 August 2025. And the cheapest day to fly to Decatur is currently Sunday, 24 August 2025.
If you're flying from Australia, the cheapest city in Illinois to fly into is Chicago. The cheapest airport serving Chicago at the moment is Chicago O'Hare International Airport.