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

Detroit, MI (DTW) to Chicago, IL (MDW) flight delay odds

74.8% of 1,320 official scheduled DTW-to-MDW flights arrived on time; 13.9% arrived at least 30 minutes late and 1.3% 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
74.8%arrived on time
13.9%30+ min late
1.3%cancelled
1,320scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.0%all scheduled flights
120+ minutes late2.5%all scheduled flights
Diverted0.5%did not reach as scheduled
Average arrival+10.1 mincompleted flights

Which departure time was most reliable for DTW to MDW?

Among qualifying DTW-to-MDW departure window results, Early morning had the highest on-time rate: 80.0% of 489 flights. Evening was lowest at 66.7% across 459 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning48980.0%10.0%1.4%
Afternoon34279.5%12.3%0.3%
Evening45966.7%18.5%2.0%

Which weekday was most reliable for DTW to MDW?

Among qualifying DTW-to-MDW weekday results, Sunday had the highest on-time rate: 76.8% of 190 flights. Monday was lowest at 71.9% across 192 flights.

DayFlightsOn time30+ minCancelled
Monday19271.9%14.1%1.0%
Tuesday19574.4%15.4%1.0%
Wednesday19375.1%13.0%0.5%
Thursday19274.0%14.6%1.6%
Friday19075.8%12.6%2.1%
Saturday16876.2%11.3%3.0%
Sunday19076.8%15.8%0.0%

Which airline was most reliable for DTW to MDW?

Among qualifying DTW-to-MDW airline results, SkyWest Airlines had the highest on-time rate: 77.4% of 265 flights. Southwest Airlines was lowest at 74.2% across 1,055 flights.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines1,05574.2%13.7%1.5%
SkyWest Airlines26577.4%14.3%0.4%

Which month was most reliable for DTW to MDW?

Among qualifying DTW-to-MDW month results, September 2025 had the highest on-time rate: 85.3% of 150 flights. June 2026 was lowest at 54.7% across 86 flights.

MonthFlightsOn time30+ minCancelled
July 202515368.6%20.3%2.0%
August 202516075.6%13.1%1.2%
September 202515085.3%6.0%0.0%
October 202515485.1%7.8%0.0%
November 20259974.7%13.1%7.1%
December 20258966.3%19.1%0.0%
January 20268774.7%17.2%0.0%
February 20268081.2%8.8%0.0%
March 20268970.8%13.5%3.4%
April 20268677.9%10.5%1.2%
May 20268772.4%14.9%0.0%
June 20268654.7%27.9%1.2%

What drove DTW to MDW delay minutes?

Airline was the largest recorded DTW-to-MDW delay category, accounting for 34.7% of 17,301 BTS-attributed delay minutes during July 2025–June 2026.

Airline34.7%
Late aircraft34.4%
National airspace26.6%
Weather4.1%
Security0.2%
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.