Find cheap flights to Illinois

When is the best time to fly to Illinois?

In general when looking for the cheapest flight to Illinois, try to book your flight during the month of August for the best deal.

When is the best time to book a flight to Illinois?

In general, most flyers find the cheapest time to book a flight to Illinois is about 16 days prior.

What is the cheapest day to depart on your flight to Illinois?

On average, the cheapest flights to Illinois are found when departing on a Tuesday. Try to avoid departing on a Saturday, as this is usually the most expensive day.

What is the cheapest time of day to fly to Illinois?

In general, when looking for the cheapest flight to Illinois, our data indicates that morning flights are the most cost-effective. evening flights tend to be the most expensive.