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Route Reliability

Chicago → Pittsburgh

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

85
Pretty Reliable
WanderNerd Reliability Score
81%
Arrive within 15 minutes
6 min
Average arrival delay
1.1%
Cancelled
1,148
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 1,148 flights. No comparison to make.

What the data says

Morning flights do better here.

MDW–PIT flights departing between 6–9 AM arrived on time 93% of the time, versus 64% between 9 PM–12 AM.

Saturday is the weak spot.

MDW–PIT flights arrived on time 87% of the time on Wednesdays. On Saturdays: 77%.

Flights on this route

The breakdown

On-time by weekday
  • Mon79%(174 flights)
  • Tue84%(167 flights)
  • Wed87%(168 flights)
  • Thu80%(176 flights)
  • Fri81%(175 flights)
  • Sat77%(111 flights)
  • Sun77%(164 flights)
On-time by departure window
  • 6–9 AM93%(128 flights)
  • 9 AM–12 PM91%(231 flights)
  • 12–3 PM82%(316 flights)
  • 3–6 PM74%(115 flights)
  • 6–9 PM75%(217 flights)
  • 9 PM–12 AM64%(128 flights)
On-time trend by month
81%
May

Jun 74% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202574%102
July 202569%105
August 202583%110
September 202588%112
October 202583%115
November 202583%81
December 202580%89
January 202679%85
February 202686%80
March 202673%84
April 202697%85
May 202681%87

Same trip, other airports

Keep nerding

Based on 1,148 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.