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

Memphis, TN (MEM) to Chicago, IL (MDW) flight delay odds

83.6% of 666 official scheduled MEM-to-MDW flights arrived on time; 9.0% arrived at least 30 minutes late and 1.8% 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
83.6%arrived on time
9.0%30+ min late
1.8%cancelled
666scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late4.5%all scheduled flights
120+ minutes late1.4%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+2.4 mincompleted flights

Which departure time was most reliable for MEM to MDW?

Among qualifying MEM-to-MDW departure window results, Early morning had the highest on-time rate: 90.9% of 328 flights. Afternoon was lowest at 76.6% across 273 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning32890.9%4.9%2.1%
Afternoon27376.6%12.1%1.5%
Evening6476.6%17.2%1.6%

Which weekday was most reliable for MEM to MDW?

Among qualifying MEM-to-MDW weekday results, Wednesday had the highest on-time rate: 90.5% of 95 flights. Monday was lowest at 80.2% across 101 flights.

DayFlightsOn time30+ minCancelled
Monday10180.2%10.9%2.0%
Tuesday9883.7%10.2%0.0%
Wednesday9590.5%4.2%1.1%
Thursday10083.0%9.0%1.0%
Friday10181.2%9.9%3.0%
Saturday6985.5%5.8%2.9%
Sunday10282.4%11.8%2.9%

Which airline was most reliable for MEM to MDW?

Only Southwest Airlines met the MEM-to-MDW airline threshold: 83.6% of 666 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines66683.6%9.0%1.8%

Which month was most reliable for MEM to MDW?

Among qualifying MEM-to-MDW month results, October 2025 had the highest on-time rate: 94.8% of 58 flights. March 2026 was lowest at 66.7% across 60 flights.

MonthFlightsOn time30+ minCancelled
July 20255887.9%10.3%1.7%
August 20255787.7%7.0%0.0%
September 20255692.9%3.6%0.0%
October 20255894.8%3.4%0.0%
November 20255479.6%9.3%3.7%
December 20255884.5%13.8%0.0%
January 20264082.5%7.5%7.5%
February 20264388.4%2.3%0.0%
March 20266066.7%10.0%8.3%
April 20266088.3%8.3%0.0%
May 20266277.4%16.1%0.0%
June 20266075.0%13.3%1.7%

What drove MEM to MDW delay minutes?

Late aircraft was the largest recorded MEM-to-MDW delay category, accounting for 39.7% of 5,405 BTS-attributed delay minutes during July 2025–June 2026.

Airline37.5%
Late aircraft39.7%
National airspace22.6%
Weather0.1%
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.