Cheap flights to Illinois

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Find where to fly in Illinois

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

Flying to Illinois

The things to know before you go.
Cheapest flight found2 726 kr
Cheapest month to flyFebruary
Cheapest airport to fly fromOslo Gardermoen

Frequently asked questions

Currently, there are no airlines that fly direct to Illinois. But we found flights with one or more stops from 3 966 kr.
Currently, Icelandair and British Airways offer the cheapest flight tickets to Illinois.
We looked at upcoming return flights to Illinois departing over the next 12 months and found that Oslo Gardermoen Airport to Chicago O'Hare International Airport for 3 966 kr is the best price.
The cheapest month to fly to Greater Peoria is currently October. The cheapest month to fly to Chicago O'Hare International is currently November.
The cheapest day to fly to Chicago O'Hare International is currently Saturday, 15 November 2025. The cheapest day to fly to Greater Peoria is currently Saturday, 11 October 2025.
If you're flying from Norway, the cheapest city in Illinois to fly into is Chicago. The cheapest airport serving Chicago at the moment is Chicago O'Hare International Airport.