Cheap flights from Chicago to Austin from $128

The cheapest month to fly to Austin from Chicago is in December. Flight prices, which tend to average around $59, are often lower during this time because this is during the off-season. If you’re not able to fly to Austin in December, then September is your next best option. Flight prices from Chicago to Austin during September average around $79.

The cheapest day to depart on your flight to Austin is on a Saturday when prices can be found for as low as $272. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Chicago to Austin for around $398.

In the afternoon is the cheapest time of day to fly from Chicago to Austin when you can find flight prices for as low as $250. Flying to Austin in the afternoon is an ideal time because this is during off-peak travel hours. Flights to Austin are more costly in the evening, with an average ticket price of $368. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Chicago O'Hare Intl to Austin Bergstrom for the best Chicago - Austin Bergstrom flight prices

You are more likely to see cheaper flights to Austin from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Austin for around $292 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Austin from Chicago for as low as $224 on momondo.

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

You could potentially save up to 13% on your flight if you consider stops on a Chicago to Austin flight.

As of May 2026, prices for Chicago to Austin flights are approximately 29% more expensive when compared to flights at the same time last year.

Southwest, Delta, and United Airlines are the most popular carriers operating from Chicago to Austin Bergstrom

United Airlines, American Airlines and Frontier are the top three most popular airlines that fly to Austin from Chicago according to our data. United Airlines is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Austin. Keep in mind that there are 6 different airlines that fly to Austin on a routine basis, so you have a few additional options to choose from.

Historically, on average around 20% of flights between Chicago and Austin have experienced a delay on any given week. The average delay length over the past 12 months has been 143 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights at night have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 16% of their flights experiencing any sort of delay.

As of May 2026, there are 36 flights per day flying from Chicago to Austin. The most common time of day flights depart is 9:00PM, with 57% of flights taking off in the evening.

As of May 2026, 256 flights take off from Chicago and land in Austin each week. The most common flight departure day for this route is Thu, with 18% of weekly flights taking off on this day.