Cheap flights from Illinois to Indiana from $49

The cheapest month to fly to Indiana from Illinois is in August. Flight prices, which tend to average around $264, are often lower during this time because this is during the off-season. The month of November is another great option to travel to Indiana, with average flight prices from Illinois averaging around $272.

Our data shows that Thursday is the least expensive day to fly to Indiana. Tickets to fly out on this day can be as low as $283. On the other hand, Monday is the most expensive day to depart from Illinois because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $421.

Our data shows that the cheapest Illinois to Indiana flights are usually those with departure times at noon. Our users have found flights to Indiana at noon for as low as $287. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $416 on average. Flights to Indiana from Illinois in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

Fly from Chicago O'Hare Intl to Lafayette Purdue University for the best Illinois - Indiana flight prices

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

No. A direct flight is the cheapest option for a flight between Illinois to Indiana.

As of April 2026, 294 flights take off from Illinois and land in Indiana each day. The most common flight departure time for this route is 4:00PM, with 40% of daily flights taking off in the afternoon.

As of April 2026, there are 2,063 flights per week flying from Illinois to Indiana. The most common day of the week flights depart is Fri, with 16% of flights taking off on this day.