Austin (AUS) to Chicago (CHI): 978 miles (1,574 km) great-circle, about 2h 25m nonstop by our estimate. Cheapest fare observed: $277 round-trip on United Airlines, nonstop, departing May 21, 2026.
$277 round-trip, United Airlines UA1878, departing 2026-05-21 at 06:40, returning 2026-05-25. The recorded itinerary left on a Thursday, returning on a Monday 4 nights later; the fare was observed 26 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $277, it ranked 13th of the 30 round-trip fares we recorded from AUS (median $292). That is 28.3 cents per great-circle mile (round-trip price over one-way distance), above the AUS median of 22.5 cents across 30 round-trip routes.
Routes from AUS of similar length: Orlando (989 mi) at $127 and Charlotte (1,030 mi) at $300.
United Airlines had the cheapest fare on 5 of 30 AUS routes. It is the 26th longest of the 30 routes we track from AUS.
Of 33 departure airports with a fare to Chicago, Austin (AUS) ranked 26th at $277. Lowest: $89 from Atlanta (ATL); highest: $1241 from Nairobi (NBO); 16 nonstop. Cheapest-fare airlines (routes): Frontier (15), Spirit (5), United Airlines (4), American Airlines (2), airline 0O (1) and Alaska Airlines (1), plus 5 more.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/Chicago, America/Chicago; flight time is our estimate.