Cheap flights from Illinois to New Orleans from $145

The cheapest month to fly to New Orleans from Illinois is in February. Flight prices, which tend to average around $282, are often lower during this time because this is during the off-season. If you are unable to visit New Orleans during the month of February, then departing from Illinois during the month January is also very affordable. Most momondo users find prices during this month for around $285.

The cheapest day to depart from Illinois to New Orleans is on a Saturday when prices can be found for as low as $344. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Illinois to New Orleans for around $431.

The cheapest time of day to fly to New Orleans is in the afternoon when flights can be purchased for as low as $366. At noon is when there is more demand to fly to New Orleans, so prices are often more expensive at around $404 per ticket.

Fly from Chicago O'Hare Intl to New Orleans Louis Armstrong for the best Illinois - New Orleans Louis Armstrong flight prices

You are more likely to see cheaper flights to New Orleans from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to New Orleans for around $364 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to New Orleans from Illinois for as low as $286 on momondo.

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

Southwest, American Airlines, and United Airlines are the most popular carriers operating from Illinois to New Orleans Louis Armstrong

United Airlines, American Airlines and Southwest are the top three most popular airlines that fly to New Orleans from Illinois according to our data. United Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to New Orleans. Keep in mind that there are 5 different airlines that fly to New Orleans on a routine basis, so you have a few additional options to choose from.

As of October 2026, 14 flights take off from Illinois and land in New Orleans each day. The most common flight departure time for this route is 9:00PM, with 62% of daily flights taking off in the evening.

The number of flights available between Illinois and New Orleans is 99 per week as of October 2026. The most frequent departure day is Sun, with 30% of weekly flights leaving on this day.