Flights to Illinois overview
Going searches for the best fares and sends members deals bookable 1-12 months in advance. Going members save approximately 37% compared to normal flight prices to Illinois.
Cheapest Going deal
Average price roundtrip
Average Going deal price roundtrip
Best month to fly
Going found the most deals with travel dates in October.
Worst month to fly
Going found the least deals with travel dates in June.
Going helps you find flight deals to Illinois and save big. Try Going Premium today.
Number of deals
Total to Illinois in the last month
Total Mistake Fares
Airline slip-ups we've caught to Illinois
Never overpay on flights again.
40-90% off flights.
Most members save an average of $550 on international economy flights and $200 on domestic.
Destinations across the globe.
We send flight alerts to over 180 airports in the US for over 900 destinations around the world.
Deals for highly rated airlines.
We prioritize the best itineraries on the best airlines. If it's not an amazing deal, we won't send it.
* Prices are per person and include all taxes & fees in USD. All prices were accurate at the time of publishing, however, prices are not guaranteed, as airline pricing can change by the minute. Average Going fares are based on average prices of deals found by Going.