BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
ORD→AUS

Chicago, IL (ORD) to Austin, TX (AUS) flight delay odds

70.4% of 3,169 official scheduled ORD-to-AUS flights arrived on time; 18.9% arrived at least 30 minutes late and 2.1% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALGenerally reliable
70.4%arrived on time
18.9%30+ min late
2.1%cancelled
3,169scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late10.9%all scheduled flights
120+ minutes late4.3%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+12.9 mincompleted flights

Which departure time was most reliable for ORD to AUS?

Among qualifying ORD-to-AUS departure window results, Early morning had the highest on-time rate: 85.9% of 659 flights. Night was lowest at 31.5% across 111 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning65985.9%7.4%0.8%
Late morning62373.0%17.2%1.4%
Afternoon1,00368.4%20.5%1.2%
Evening77363.4%24.1%3.6%
Night11131.5%46.8%9.9%

Which weekday was most reliable for ORD to AUS?

Among qualifying ORD-to-AUS weekday results, Tuesday had the highest on-time rate: 73.8% of 432 flights. Sunday was lowest at 64.4% across 472 flights.

DayFlightsOn time30+ minCancelled
Monday49871.5%18.1%2.2%
Tuesday43273.8%17.8%0.9%
Wednesday42570.1%20.5%0.9%
Thursday47473.0%15.0%2.5%
Friday48568.7%20.0%2.5%
Saturday38372.1%16.7%2.9%
Sunday47264.4%24.2%2.3%

Which airline was most reliable for ORD to AUS?

Among qualifying ORD-to-AUS airline results, United Airlines had the highest on-time rate: 77.0% of 1,471 flights. Southwest Airlines was lowest at 61.4% across 207 flights.

AirlineFlightsOn time30+ minCancelled
United Airlines1,47177.0%14.2%1.1%
American Airlines1,19065.0%23.8%2.9%
Southwest Airlines20761.4%24.6%1.0%
Frontier Airlines11862.7%22.9%5.1%
Republic Airways9565.3%15.8%5.3%
Envoy Air8871.6%17.0%2.3%

Which month was most reliable for ORD to AUS?

Among qualifying ORD-to-AUS month results, February 2026 had the highest on-time rate: 85.9% of 213 flights. July 2025 was lowest at 56.0% across 268 flights.

MonthFlightsOn time30+ minCancelled
July 202526856.0%29.1%3.7%
August 202526673.7%17.3%2.6%
September 202525879.8%14.7%0.4%
October 202529975.9%13.4%0.3%
November 202525573.7%14.5%3.5%
December 202523767.9%23.6%0.4%
January 202620766.2%19.8%5.3%
February 202621385.9%7.0%0.0%
March 202630264.6%26.5%3.3%
April 202629566.8%18.6%3.7%
May 202630071.0%17.7%0.0%
June 202626966.5%22.7%1.5%

What drove ORD to AUS delay minutes?

Late aircraft was the largest recorded ORD-to-AUS delay category, accounting for 51.8% of 65,247 BTS-attributed delay minutes during July 2025–June 2026.

Airline23.3%
Late aircraft51.8%
National airspace17.8%
Weather7.0%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.