Cheap flights from Texas to Illinois from $44

The cheapest month to fly to Illinois from Texas is in January. Flight prices, which tend to average around $223, 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 January, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $231.

The cheapest day to depart from Texas to Illinois is on a Friday when prices can be found for as low as $286. Flights from Texas to Illinois on a Sunday will generally be more expensive and average around $538. 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 Texas to Illinois during this time can be as low as $256. Flights in the afternoon are often more expensive with an average ticket price of $451.

Fly from Dallas/Fort Worth to Chicago Midway for the best Texas - Illinois flight prices

You are more likely to see cheaper flights to Illinois from Texas when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $268 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Texas for as low as $197 on momondo.

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

Southwest, Delta, and United Airlines are the most popular carriers operating from Texas to Illinois

American Airlines, Frontier and United Airlines are the top three most popular airlines that fly to Illinois from Texas according to our data. American Airlines is the first choice among our users, with 32% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 7 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

As of August 2026, 233 flights take off from Texas and land in Illinois each day. The most common flight departure time for this route is 1:00PM, with 43% of daily flights taking off in the afternoon.

As of August 2026, 1,631 flights take off from Texas and land in Illinois each week. The most common flight departure day for this route is Tue, with 19% of weekly flights taking off on this day.