Cheap flights from Hartford to Illinois from $124

The cheapest month to fly to Illinois from Hartford is in January. Flight prices, which tend to average around $344, 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 $349.

The cheapest day to depart from Hartford to Illinois is on a Wednesday when prices can be found for as low as $460. Flights from Hartford to Illinois on a Sunday will generally be more expensive and average around $581. 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 Hartford to Illinois during this time can be as low as $432. Flights in the morning are often more expensive with an average ticket price of $501.

Fly from Hartford Bradley Intl to Chicago O'Hare Intl for the best Hartford Bradley Intl - Illinois flight prices

You are more likely to see cheaper flights to Illinois from Hartford when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $415 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Hartford for as low as $344 on momondo.

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

Frontier, Southwest, and United Airlines are the most popular carriers operating from Hartford Bradley Intl to Illinois

American Airlines, United Airlines and Southwest are the top three most popular airlines that fly to Illinois from Hartford according to our data. American Airlines is the first choice among our users, with 74% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 4 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

As of August 2026, 17 flights take off from Hartford and land in Illinois each day. The most common flight departure time for this route is 7:00AM, with 62% of daily flights taking off at noon.

As of August 2026, there are 120 flights per week flying from Hartford to Illinois. The most common day of the week flights depart is Wed, with 21% of flights taking off on this day.