Cheap flights from Illinois to Cincinnati from $88

The month of October is, on average, the cheapest month to fly to Cincinnati from Illinois, with most prices found around $72. If you aren’t able to travel to Cincinnati during the month of October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $79.

According to our data, Thursday is the cheapest day to fly to Cincinnati from Illinois. The lowest ticket price found for a Thursday departure recently was $286. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. On the other hand, Sunday 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 $490.

Our most recent data shows that the best time of day to fly to Cincinnati is in the morning. Flights from Illinois to Cincinnati during this time can be as low as $329. In the afternoon is when there is more demand to fly to Cincinnati, so prices are often more expensive at around $476 per ticket.

Fly from Chicago Midway to Cincinnati Cinci./N. Kentucky for the best Illinois - Cincinnati Cinci./N. Kentucky flight prices

You are more likely to see cheaper flights to Cincinnati from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Cincinnati for around $357 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Cincinnati from Illinois for as low as $178 on momondo.

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

Frontier, Southwest, and American Airlines are the most popular carriers operating from Illinois to Cincinnati Cinci./N. Kentucky

United Airlines, American Airlines and Southwest are the top three most popular airlines that fly to Cincinnati from Illinois according to our data. United Airlines is the first choice among our users, with 56% of people opting to fly with this airline when traveling to Cincinnati. Keep in mind that there are 4 different airlines that fly to Cincinnati on a routine basis, so you have a few additional options to choose from.

As of June 2026, 62 flights take off from Illinois and land in Cincinnati each day. The most common flight departure time for this route is 6:00PM, with 42% of daily flights taking off in the evening.

As of June 2026, there are 440 flights per week flying from Illinois to Cincinnati. The most common day of the week flights depart is Thu, with 17% of flights taking off on this day.