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

Columbus, OH (CMH) to Chicago, IL (ORD) flight delay odds

72.7% of 4,841 official scheduled CMH-to-ORD flights arrived on time; 17.2% arrived at least 30 minutes late and 2.5% 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 SIGNALVariable
72.7%arrived on time
17.2%30+ min late
2.5%cancelled
4,841scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late10.0%all scheduled flights
120+ minutes late4.9%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+14.8 mincompleted flights

Which departure time was most reliable for CMH to ORD?

Among qualifying CMH-to-ORD departure window results, Early morning had the highest on-time rate: 81.1% of 1,651 flights. Evening was lowest at 50.3% across 821 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning1,65181.1%10.5%1.3%
Late morning1,08679.9%13.4%1.1%
Afternoon1,23670.2%19.3%3.1%
Evening82150.3%31.9%5.4%
Night4763.8%23.4%8.5%

Which weekday was most reliable for CMH to ORD?

Among qualifying CMH-to-ORD weekday results, Tuesday had the highest on-time rate: 76.8% of 654 flights. Monday was lowest at 66.2% across 727 flights.

DayFlightsOn time30+ minCancelled
Monday72766.2%21.9%2.8%
Tuesday65476.8%13.8%2.1%
Wednesday68475.9%14.9%1.9%
Thursday71373.6%16.8%1.8%
Friday71372.5%17.0%2.4%
Saturday62676.7%15.3%2.2%
Sunday72468.2%19.9%3.9%

Which airline was most reliable for CMH to ORD?

Among qualifying CMH-to-ORD airline results, American Airlines had the highest on-time rate: 83.6% of 128 flights. SkyWest Airlines was lowest at 60.7% across 535 flights.

AirlineFlightsOn time30+ minCancelled
Republic Airways1,51281.7%10.6%2.2%
Envoy Air1,39973.2%17.4%2.1%
United Airlines1,21365.1%21.6%1.8%
SkyWest Airlines53560.7%26.5%5.8%
American Airlines12883.6%9.4%2.3%
PSA Airlines5468.5%22.2%1.9%

Which month was most reliable for CMH to ORD?

Among qualifying CMH-to-ORD month results, May 2026 had the highest on-time rate: 82.8% of 459 flights. December 2025 was lowest at 57.6% across 349 flights.

MonthFlightsOn time30+ minCancelled
July 202539863.8%26.1%2.3%
August 202540774.4%13.8%3.4%
September 202541178.1%12.4%0.2%
October 202543872.1%15.5%0.5%
November 202539270.4%19.1%4.1%
December 202534957.6%27.8%1.7%
January 202630369.3%19.8%4.3%
February 202632882.6%10.7%0.3%
March 202644266.3%21.3%5.2%
April 202646475.4%16.6%2.8%
May 202645982.8%9.8%1.3%
June 202645076.2%15.6%3.3%

What drove CMH to ORD delay minutes?

National airspace was the largest recorded CMH-to-ORD delay category, accounting for 35.7% of 106,597 BTS-attributed delay minutes during July 2025–June 2026.

Airline26.8%
Late aircraft31.5%
National airspace35.7%
Weather6.0%
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.