Cheap flights from Illinois to Jacksonville from $117

If you are unable to visit Jacksonville during the month of January, then departing from Illinois during the month October is also very affordable. Most momondo users find prices during this month for around $342.

According to our data, Saturday is the cheapest day to fly to Jacksonville from Illinois. The lowest ticket price found for a Saturday departure recently was $336. 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, 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 $428.

Flying to Jacksonville from Illinois at noon is the least expensive time of day to depart. momondo users have found prices as low as $349 when looking at flights departing at noon. Flights to Jacksonville are more costly in the afternoon, with an average ticket price of $379. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to Jacksonville from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Jacksonville for around $364 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Jacksonville from Illinois for as low as $313 on momondo.

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

Frontier, Southwest, and JetBlue are the most popular carriers operating from Illinois to Jacksonville

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Jacksonville from Illinois according to our data. American Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Jacksonville. Keep in mind that there are 7 different airlines that fly to Jacksonville on a routine basis, so you have a few additional options to choose from.

As of September 2026, there are 21 flights per day flying from Illinois to Jacksonville. The most common time of day flights depart is 7:00PM, with 41% of flights taking off in the evening.

As of September 2026, there are 148 flights per week flying from Illinois to Jacksonville. The most common day of the week flights depart is Thu, with 18% of flights taking off on this day.