Cheap flights from Houston to Illinois

The cheapest month to fly to Illinois from Houston is in December. Flight prices, which tend to average around $213, 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 December, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $221.

The cheapest day to depart from Houston to Illinois is on a Saturday when prices can be found for as low as $307. Flights from Houston to Illinois on a Sunday will generally be more expensive and average around $499. 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 Houston to Illinois during this time can be as low as $253. Flights at noon are often more expensive with an average ticket price of $647.

Fly from Houston George Bush Intcntl to Chicago O'Hare Intl for the best Houston - Illinois flight prices

You are more likely to see cheaper flights to Illinois from Houston when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $253 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Houston for as low as $214 on momondo.

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