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Route Reliability

Chicago → Austin

MDW–AUS · 972 miles · Chicago Midway International Airport to Austin–Bergstrom International Airport

82
Pretty Reliable
WanderNerd Reliability Score
78%
Arrive within 15 minutes
5 min
Average arrival delay
0.7%
Cancelled
1,351
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 78% of the time across 1,351 flights. No comparison to make.

What the data says

Morning flights do better here.

MDW–AUS flights departing between 3–6 AM arrived on time 97% of the time, versus 54% between 9 PM–12 AM.

Sunday scaries are real for this one.

MDW–AUS flights arrived on time 85% of the time on Tuesdays. On Sundays: 73%.

Flights on this route

The breakdown

On-time by weekday
  • Mon75%(207 flights)
  • Tue85%(187 flights)
  • Wed79%(186 flights)
  • Thu79%(207 flights)
  • Fri75%(212 flights)
  • Sat78%(136 flights)
  • Sun73%(202 flights)
On-time by departure window
  • 3–6 AM97%(67 flights)
  • 6–9 AM87%(318 flights)
  • 9 AM–12 PM85%(178 flights)
  • 12–3 PM80%(230 flights)
  • 3–6 PM72%(146 flights)
  • 6–9 PM71%(243 flights)
  • 9 PM–12 AM54%(155 flights)
On-time trend by month
77%
May

Jun 71% → May 77% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202571%127
July 202568%130
August 202582%107
September 202587%104
October 202583%136
November 202582%100
December 202565%104
January 202681%86
February 202685%86
March 202675%104
April 202678%123
May 202677%130

Same trip, other airports

Keep nerding

Based on 1,351 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.