FlightRecord

Pittsburgh (PIT) to Chicago (MDW): On-Time Performance

Data through May 2026

When you fly PIT to MDW matters as much as anything else about the booking: the route swung from 93% on-time in November 2024 to just 65% in December 2025. Across the full period the route averages 81% on-time against a national 78%. Morning departures also hold up better than evening ones (87% vs 71%), which matters most in the rough months.

On-time
81%
arrived <15 min late
Avg delay
12 min
completed flights
Cancelled
0.7%
Flights/day
3.2
last 12 months
Duration
1h 29m
scheduled
Distance
402 mi

Monthly on-time trend

Monthly on-time percentage for PIT to MDW flights50%75%100%June 2024: 70% on-time (100 flights)70Jun 2024July 2024: 82% on-time (104 flights)82August 2024: 87% on-time (112 flights)87September 2024: 90% on-time (111 flights)90Sep 2024October 2024: 85% on-time (107 flights)85November 2024: 93% on-time (84 flights)93December 2024: 77% on-time (87 flights)77Dec 2024January 2025: 75% on-time (84 flights)75February 2025: 80% on-time (72 flights)80March 2025: 90% on-time (87 flights)90Mar 2025April 2025: 86% on-time (86 flights)86May 2025: 79% on-time (86 flights)79June 2025: 78% on-time (102 flights)78Jun 2025July 2025: 71% on-time (105 flights)71August 2025: 82% on-time (113 flights)82September 2025: 87% on-time (112 flights)87Sep 2025October 2025: 83% on-time (114 flights)83November 2025: 84% on-time (85 flights)84December 2025: 65% on-time (89 flights)65Dec 2025January 2026: 83% on-time (88 flights)83February 2026: 89% on-time (80 flights)89March 2026: 68% on-time (89 flights)68Mar 2026April 2026: 78% on-time (86 flights)78May 2026: 79% on-time (87 flights)79

Best time to fly from PIT to MDW

Aim for departures around 9 a.m. (94% on-time); avoid 8 p.m. departures (63%).

On-time percentage by scheduled departure hour, PIT to MDW5 a.m.: 94% on-time (51 flights)56 a.m.: 88% on-time (394 flights)67 a.m.: 82% on-time (128 flights)78 a.m.: 81% on-time (125 flights)89 a.m.: 94% on-time (89 flights)910 a.m.: 91% on-time (63 flights)1011 a.m.: 95% on-time (21 flights)1112 p.m.: 91% on-time (130 flights)121 p.m.: 85% on-time (111 flights)132 p.m.: 85% on-time (206 flights)143 p.m.: 80% on-time (79 flights)154 p.m.: 76% on-time (144 flights)165 p.m.: 77% on-time (62 flights)176 p.m.: 80% on-time (123 flights)187 p.m.: 75% on-time (209 flights)198 p.m.: 63% on-time (225 flights)209 p.m.: 66% on-time (110 flights)21scheduled departure hour

By day of week

DayOn-timeAvg delay
Monday81%13 min
Tuesday80%10 min
Wednesday84%11 min
Thursday81%10 min
Friday80%11 min
Saturdaybest86%9 min
Sunday76%18 min

What causes delays on this route

Share of total delay minutes by cause, as reported by carriers to the US DOT.

  • Late-arriving aircraft48%
  • Airline operations23%
  • National airspace system25%
  • Weather4%

Frequently asked questions

How often are flights from PIT to MDW delayed?
19% of PIT–MDW flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 12 minutes.
What is the best time of day to fly from PIT to MDW?
Departures around 9 a.m. have the best record (94% on-time), while departures around 8 p.m. have the worst (63%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
How long is the flight from PIT to MDW?
The scheduled PIT–MDW flight time averages 1h 29m over 402 miles. Actual arrival times vary — flights on this route land 15+ minutes late 19% of the time.
How often are PIT to MDW flights cancelled?
0.7% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
What is the worst month to fly from PIT to MDW?
December 2025 was the roughest month in this dataset, with only 65% of arrivals on time. The best was November 2024 at 93%. If your dates are flexible, that 28-point gap is worth planning around.

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Based on 2,270 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.