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

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

76.3% of 1,352 official scheduled AUS-to-MDW flights arrived on time; 13.0% arrived at least 30 minutes late and 1.3% 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
76.3%arrived on time
13.0%30+ min late
1.3%cancelled
1,352scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.5%all scheduled flights
120+ minutes late2.1%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+8.8 mincompleted flights

Which departure time was most reliable for AUS to MDW?

Among qualifying AUS-to-MDW departure window results, Early morning had the highest on-time rate: 89.6% of 356 flights. Evening was lowest at 65.9% across 132 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning35689.6%3.9%0.8%
Late morning27184.9%6.3%1.5%
Afternoon45466.7%18.1%1.3%
Evening13265.9%24.2%0.8%
Night13966.9%22.3%2.2%

Which weekday was most reliable for AUS to MDW?

Among qualifying AUS-to-MDW weekday results, Wednesday had the highest on-time rate: 80.3% of 183 flights. Sunday was lowest at 67.8% across 199 flights.

DayFlightsOn time30+ minCancelled
Monday21473.8%11.7%1.4%
Tuesday18977.8%12.7%0.0%
Wednesday18380.3%12.0%0.0%
Thursday21378.4%13.1%1.4%
Friday21878.0%12.4%0.9%
Saturday13679.4%8.8%3.7%
Sunday19967.8%19.1%2.0%

Which airline was most reliable for AUS to MDW?

Only Southwest Airlines met the AUS-to-MDW airline threshold: 76.3% of 1,352 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines1,35276.3%13.0%1.3%

Which month was most reliable for AUS to MDW?

Among qualifying AUS-to-MDW month results, September 2025 had the highest on-time rate: 88.5% of 104 flights. March 2026 was lowest at 58.5% across 106 flights.

MonthFlightsOn time30+ minCancelled
July 202513366.9%21.1%3.0%
August 202510780.4%10.3%1.9%
September 202510488.5%3.8%0.0%
October 202513683.8%9.6%0.0%
November 202510378.6%10.7%2.9%
December 202510478.8%12.5%0.0%
January 20268884.1%9.1%1.1%
February 20268783.9%9.2%1.1%
March 202610658.5%24.5%1.9%
April 202612479.8%12.9%0.8%
May 202613176.3%12.2%0.0%
June 202612962.0%17.1%2.3%

What drove AUS to MDW delay minutes?

Late aircraft was the largest recorded AUS-to-MDW delay category, accounting for 51.0% of 15,735 BTS-attributed delay minutes during July 2025–June 2026.

Airline27.0%
Late aircraft51.0%
National airspace16.3%
Weather4.8%
Security0.8%
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.