Cheap flights from Illinois to Louisiana from $71

In general, January is the cheapest month to fly from Illinois to Louisiana. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $270. The month of October is another great option to travel to Louisiana, with average flight prices from Illinois averaging around $274.

According to our data, Tuesday is the cheapest day to fly to Louisiana from Illinois. The lowest ticket price found for a Tuesday departure recently was $314. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to Louisiana on Thursday is $398.

The cheapest time of day to fly to Louisiana is in the afternoon when flights can be purchased for as low as $328. In contrast, the most expensive time of day to depart to Louisiana is at noon when prices are around $380.

Fly from Chicago Midway to New Orleans Louis Armstrong for the best Illinois - Louisiana flight prices

You are more likely to see cheaper flights to Louisiana from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Louisiana for around $319 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Louisiana from Illinois for as low as $252 on momondo.

There are 4 cabin classes available to choose from on Illinois to Louisiana 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 Illinois to Louisiana

American Airlines, United Airlines and Southwest are the top three most popular airlines that fly to Louisiana from Illinois according to our data. American Airlines is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Louisiana. Keep in mind that there are 5 different airlines that fly to Louisiana on a routine basis, so you have a few additional options to choose from.

As of July 2026, 38 flights take off from Illinois and land in Louisiana each day. The most common flight departure time for this route is 2:00PM, with 46% of daily flights taking off in the evening.

As of July 2026, there are 267 flights per week flying from Illinois to Louisiana. The most common day of the week flights depart is Fri, with 16% of flights taking off on this day.