$61 Find Cheap Flights from Austin to Illinois - Compare and Save

The cheapest ticket to Illinois from Austin found in the last 5 days was to Chicago, at $237 round-trip. The most popular route is from Austin (AUS) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 5 days was $239.

The cheapest time of day to fly to Illinois is generally at night, when round-trip flights cost $250 on average. Morning departures are around 17% cheaper than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $487.

No, with an average price for the route of $359, prices are generally cheapest when you fly direct.

The cheapest month for flights from Austin to Illinois is January, when tickets cost $218 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $359 and $349 respectively.

If your flying dates are flexible, you should consider flying to Illinois on a Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Austin to Illinois. For your return ticket, we recommend flying on a Saturday and avoiding Mondays for the best deals.

To get a below average price on the flight from Austin to Illinois, you should book around 4 weeks before departure, which saves you about 40% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

There are 5 airlines that fly nonstop from Austin to Illinois. They are: American Airlines, Frontier, JetBlue, Southwest and United Airlines. The cheapest price of all airlines flying this route was found with Frontier at $67 for a round-trip flight to Chicago O'Hare Intl Airport (ORD). On average, Frontier offers the best prices for nonstop flights between Austin and Illinois.

Air Canada connects Austin to Illinois with 34 flights per week. United Airlines also offers 34 flights per week, while American Airlines follows with 31 flights per week.

The duration of a flight to Illinois depends on your arrival airport. The shortest routes to Illinois from Austin are to Bloomington, which takes 4h 53m, Peoria, which takes 5h 16m, and Springfield, which takes 5h 25m.

There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

The earliest flight from Austin to Illinois departs at 5:53 am, landing in Chicago at 8:59 am.

If you prefer to fly at night, the latest flight from Austin to Illinois jets off at 6:47 pm and lands in Chicago at 10:00 pm.