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Route Reliability

Pittsburgh → Chicago

PIT–MDW · 402 miles · Pittsburgh International Airport to Chicago Midway International Airport

83
Pretty Reliable
WanderNerd Reliability Score
81%
Arrive within 15 minutes
7 min
Average arrival delay
0.9%
Cancelled
1,150
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 81% of the time across 1,150 flights. No comparison to make.

What the data says

Morning flights do better here.

PIT–MDW flights departing between 9 AM–12 PM arrived on time 97% of the time, versus 36% between 9 PM–12 AM.

Sunday scaries are real for this one.

PIT–MDW flights arrived on time 86% of the time on Saturdays. On Sundays: 74%.

Flights on this route

The breakdown

On-time by weekday
  • Mon78%(174 flights)
  • Tue81%(167 flights)
  • Wed83%(167 flights)
  • Thu79%(174 flights)
  • Fri85%(174 flights)
  • Sat86%(113 flights)
  • Sun74%(166 flights)
On-time by departure window
  • 3–6 AM96%(50 flights)
  • 6–9 AM85%(309 flights)
  • 9 AM–12 PM97%(103 flights)
  • 12–3 PM85%(195 flights)
  • 3–6 PM79%(142 flights)
  • 6–9 PM69%(322 flights)
  • 9 PM–12 AM36%(14 flights)
On-time trend by month
83%
May

Jun 79% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202579%102
July 202572%104
August 202586%111
September 202589%112
October 202583%114
November 202586%83
December 202565%88
January 202684%86
February 202691%79
March 202669%84
April 202679%85
May 202683%87

Same trip, other airports

Keep nerding

Based on 1,150 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.