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

Pittsburgh, PA (PIT) to Chicago, IL (MDW) flight delay odds

77.5% of 1,134 official scheduled PIT-to-MDW flights arrived on time; 11.5% arrived at least 30 minutes late and 1.0% 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
77.5%arrived on time
11.5%30+ min late
1.0%cancelled
1,134scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late5.8%all scheduled flights
120+ minutes late2.6%all scheduled flights
Diverted0.6%did not reach as scheduled
Average arrival+7.6 mincompleted flights

Which departure time was most reliable for PIT to MDW?

Among qualifying PIT-to-MDW departure window results, Late morning had the highest on-time rate: 96.7% of 91 flights. Evening was lowest at 66.5% across 352 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning36482.7%6.3%1.1%
Late morning9196.7%1.1%0.0%
Afternoon31879.6%10.1%0.9%
Evening35266.5%19.9%1.1%

Which weekday was most reliable for PIT to MDW?

Among qualifying PIT-to-MDW weekday results, Saturday had the highest on-time rate: 83.6% of 110 flights. Monday was lowest at 71.7% across 173 flights.

DayFlightsOn time30+ minCancelled
Monday17371.7%16.8%0.6%
Tuesday17279.1%9.9%0.6%
Wednesday16880.4%10.1%1.2%
Thursday17375.7%9.2%1.2%
Friday17282.0%7.6%0.6%
Saturday11083.6%8.2%0.9%
Sunday16672.3%17.5%1.8%

Which airline was most reliable for PIT to MDW?

Only Southwest Airlines met the PIT-to-MDW airline threshold: 77.5% of 1,134 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines1,13477.5%11.5%1.0%

Which month was most reliable for PIT to MDW?

Among qualifying PIT-to-MDW month results, February 2026 had the highest on-time rate: 88.8% of 80 flights. December 2025 was lowest at 64.0% across 89 flights.

MonthFlightsOn time30+ minCancelled
July 202510570.5%19.0%1.0%
August 202511382.3%5.3%0.0%
September 202511286.6%2.7%0.0%
October 202511483.3%7.9%0.0%
November 20258582.4%9.4%2.4%
December 20258964.0%21.3%1.1%
January 20268880.7%11.4%2.3%
February 20268088.8%5.0%0.0%
March 20268965.2%19.1%4.5%
April 20268677.9%9.3%0.0%
May 20268779.3%12.6%0.0%
June 20268666.3%17.4%1.2%

What drove PIT to MDW delay minutes?

Late aircraft was the largest recorded PIT-to-MDW delay category, accounting for 42.3% of 14,477 BTS-attributed delay minutes during July 2025–June 2026.

Airline27.7%
Late aircraft42.3%
National airspace27.8%
Weather2.2%
Security0.0%
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.