Cheap flights from Kansas to Illinois from $61

The cheapest month to fly to Illinois from Kansas is in February. Flight prices, which tend to average around $139, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of February, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $146.

The cheapest day to depart from Kansas to Illinois is on a Saturday when prices can be found for as low as $445. Flights from Kansas to Illinois on a Sunday will generally be more expensive and average around $675. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from Kansas to Illinois during this time can be as low as $456. Flights at noon are often more expensive with an average ticket price of $650.

Fly from Wichita Eisenhower National to Chicago Midway for the best Kansas - Illinois flight prices

You are more likely to see cheaper flights to Illinois from Kansas when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $300 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Kansas for as low as $209 on momondo.

There are 4 cabin classes available to choose from on Kansas to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

As of June 2026, there are 109 flights per day flying from Kansas to Illinois. The most common time of day flights depart is 2:00PM, with 41% of flights taking off at noon.

The number of flights available between Kansas and Illinois is 767 per week as of June 2026. The most frequent departure day is Thu, with 19% of weekly flights leaving on this day.