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Airport Reliability

MDW · Chicago

Chicago Midway International Airport

74%
Departures within 15 minutes
15 min
Average departure delay
79%
Arrivals within 15 minutes
1.4%
Departures cancelled

Based on 75,055 departures and 75,064 arrivals. Data through May 2026.

What the data says

Morning flights do better here.

Departures from MDW departing between 3–6 AM arrived on time 94% of the time, versus 57% between 9 PM–12 AM.

Sunday scaries are real for this one.

Departures from MDW arrived on time 81% of the time on Wednesdays. On Sundays: 72%.

Slipping a little lately.

Departures from MDW arrived on time 74% of the time over the last three months in the data, compared with 78% in the three months before that.

When MDW gets messy

On-time by departure window
  • 3–6 AM94%(2374 flights)
  • 6–9 AM87%(13998 flights)
  • 9 AM–12 PM84%(14093 flights)
  • 12–3 PM77%(13789 flights)
  • 3–6 PM69%(9983 flights)
  • 6–9 PM68%(14264 flights)
  • 9 PM–12 AM57%(5311 flights)
On-time by weekday
  • Mon74%(11140 flights)
  • Tue80%(10268 flights)
  • Wed81%(10244 flights)
  • Thu76%(11074 flights)
  • Fri75%(11195 flights)
  • Sat78%(8786 flights)
  • Sun72%(11105 flights)
On-time trend by month
75%
May

Jun 71% → May 75% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202571%7134
July 202568%7401
August 202579%6679
September 202585%6469
October 202581%6541
November 202581%5400
December 202570%5783
January 202681%4821
February 202682%4565
March 202669%6331
April 202678%6291
May 202675%6397

Airlines departing MDW

Busiest routes from MDW

Based on 75,055 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.