What are the cheapest airlines flying from Austin to Chicago round-trip?

Cheapflights users have booked flights from Austin to Chicago round-trip from $162. Other airlines that can offer you cheap pricing are Spirit Airlines, from $182, and Southwest, from $190. These flights start at 48% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from Austin to Chicago one-way?

One-way options have recently been found by users for as low as $80 on Spirit Airlines. Other airlines that offer cheap prices include Frontier from $82 and American Airlines from $85 one-way.

How far ahead should I book a flight from Austin to Chicago?

The price you pay for your flight from Austin to Chicago may vary depending on when you book. For the best chance of a lower fare, look to book 83 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Austin to Chicago?

Currently, August is the cheapest month in which you can book a flight from Austin to Chicago (average of $245). Flying from Austin to Chicago in March is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest day to fly from Austin to Chicago?

Travelers seeking maximum savings on their Austin to Chicago flight should consider departing on Tuesday evenings when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Austin to Chicago

The most flights from AUS to CHI are scheduled on a Monday (38 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (4 on average).

In terms of precipitation, rainfall in Chicago ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago when rainfall is around 1.7 in.

If weather is an important factor for your trip to Chicago, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

What are the most popular routes from Austin to Chicago?

The most popular flight routes from Austin to Chicago are Austin Bergstrom - Chicago O'Hare Intl, Austin Bergstrom - Chicago Midway and Austin Bergstrom - Chicago Greater Rockford.

What are the cheapest flights from Austin to Chicago?

Looking at all options, your cheapest flight can be booked for $84. While the most popular route (Austin Bergstrom - Chicago O'Hare Intl) can be booked for $139 on average our data indicates $1,282 when flying from Austin to Chicago.

What are the most reliable airlines from Austin to Chicago?

No one likes to see their flight delayed. When booking a flight from Austin to Chicago consider choosing Japan Airlines (89%), Aer Lingus (88%) or Envoy Air (88%) as they are the most reliable in getting you off to your destination on time.

What are the most popular airlines that fly from Austin to Chicago?

Before booking your flight from Austin to Chicago check out the most popular airlines for this route: American Airlines, Frontier or Spirit Airlines.

What is the cheapest day to fly round-trip from Austin to Chicago?

Users have found that flying from Austin to Chicago on a Saturday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

How far in advance should I book a flight from Austin to Chicago?

To save on the cost of your flight from Austin to Chicago, book at least 59 days before your planned departure. Booking around this time can save you about 157% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $290 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $700.

What is the cheapest month to fly from Austin to Chicago?

April is one of the best times of the year to fly to Chicago from Austin. Prices for April average $316 per person but you can even find prices for as low as $122. The most expensive prices can be found in the month of December. Opting for a April flight can save you 25% on your journey compared to booking in December

What is the cheapest time of day to fly from AUS to CHI?

One of the essential ways to save on airfare from Austin to Chicago is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 44% on airfare.

What airport do you fly from for flights from Austin to Chicago?

If you book a flight to Chicago from Austin, you will be flying from Austin Bergstrom, which is the city’s only airport. Austin Bergstrom (AUS) is located 7.5 mi from the center of Austin. There are 22 flights from Austin Bergstrom to Chicago per day from 6 different airlines.

Can I find deals for flights from Austin to Chicago that include hotel bookings?

Yes. In addition to deals on Austin to Chicago flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Austin to Chicago?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Austin to Chicago.

Can I find deals for business class flights from Austin to Chicago?

Yes. Cheapflights offers flight deals from Austin to Chicago by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$80+ Flights from Austin to Chicago

Round-trip from	$162 (FlightHub)
One-way from	$80 (Kiwi.com)
Popular in	December
Cheapest in	April
Average price	$287
Good round-trip deal	$223 or less
Good one-way deal	$124 or less

United's Economy Plus offers extra legroom and priority boarding for MileagePlus Premier members.

Prepay checked bags on United to save fees; premium cabin passengers may skip fees entirely.

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$55	Average$231	FlexibilityNo cancel fee	On-time62%
Southwest	Cheapest$168	Average$345	FlexibilityNo cancel fee	On-time63%
American Airlines	Cheapest$173	Average$323	FlexibilityNo cancel fee	On-time71%
Spirit Airlines	Cheapest$176	Average$261	FlexibilityNo cancel fee	On-time65%
United Airlines	Cheapest$199	Average$408	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$216	Average$416	FlexibilityNo cancel fee	On-timeN/A

$80+ Cheap flights from Austin (AUS) to Chicago (CHI)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/28. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapflights Tip: The best prices from Austin Bergstrom to Chicago are usually found in April or March, booked 83 days in advance, depart on a Thursday or Friday and return on a Tuesday

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Cheapest flights from Austin to ChicagoExplore the most affordable flight options available from Austin to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julho 3, 2025.

Explore the most affordable flight options available from Austin to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julho 3, 2025.

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Best time to book a flight from Austin to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago from Austin with our price prediction graph.

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Everything you need to know about your flight from Austin to Chicago

How far ahead should I book a flight from Austin to Chicago?

Use this chart to determine the optimal time to book a round-trip flight from Austin to Chicago. Price data was last updated on June 27, 2025.

What is the cheapest month to book a flight from Austin to Chicago?

What is the cheapest time of day to fly from AUS to CHI?

Find hourly flight availability from Austin to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julho 3, 2025.

What is the cheapest day to fly from Austin to Chicago?

Use this chart to determine the cheapest time to fly round-trip from Austin to Chicago. Price data was last updated on June 29, 2025.

Weekly flight availability from Austin to Chicago

Explore weekly flight availability from Austin to Chicago. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated julho 3, 2025.

Reviews of airlines servicing Chicago

Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Austin to Chicago to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Austin to Chicago. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from Austin to Chicago?

What are the cheapest airlines flying from Austin to Chicago round-trip?

What are the cheapest airlines to fly from Austin to Chicago one-way?

What are the most popular routes from Austin to Chicago?

What are the most reliable airlines from Austin to Chicago?

What are the cheapest flights from Austin to Chicago?

Can I find deals for flights from Austin to Chicago that include hotel bookings?

How can I find direct flights from Austin to Chicago?

Can I find deals for business class flights from Austin to Chicago?

What is the cheapest month to book a flight from Austin to Chicago?

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Cheapest flights from Austin to Chicago
Explore the most affordable flight options available from Austin to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julho 3, 2025.