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Route Reliability

Columbus → Chicago

CMH–MDW · 283 miles · John Glenn Columbus International Airport to Chicago Midway International Airport

84
Pretty Reliable
WanderNerd Reliability Score
81%
Arrive within 15 minutes
6 min
Average arrival delay
1.3%
Cancelled
1,263
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 1,263 flights. No comparison to make.

What the data says

Morning-you made the right choice.

CMH–MDW flights departing between 9 AM–12 PM arrived on time 94% of the time, versus 56% between 9 PM–12 AM.

Sunday scaries are real for this one.

CMH–MDW flights arrived on time 89% of the time on Tuesdays and just 72% on Sundays. That gap is worth planning around.

Flights on this route

The breakdown

On-time by weekday
  • Mon79%(189 flights)
  • Tue89%(177 flights)
  • Wed88%(176 flights)
  • Thu82%(186 flights)
  • Fri80%(192 flights)
  • Sat81%(133 flights)
  • Sun72%(193 flights)
On-time by departure window
  • 6–9 AM91%(363 flights)
  • 9 AM–12 PM94%(120 flights)
  • 12–3 PM85%(163 flights)
  • 3–6 PM77%(235 flights)
  • 6–9 PM69%(347 flights)
  • 9 PM–12 AM56%(18 flights)
On-time trend by month
82%
May

Jun 79% → May 82% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202579%125
July 202573%130
August 202590%121
September 202594%115
October 202586%119
November 202584%99
December 202575%106
January 202679%85
February 202683%80
March 202668%85
April 202682%89
May 202682%92

Same trip, other airports

Keep nerding

Based on 1,263 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.