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

Houston, TX (IAH) to Columbus, OH (CMH) flight delay odds

76.3% of 548 official scheduled IAH-to-CMH flights arrived on time; 15.1% arrived at least 30 minutes late and 0.9% 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
76.3%arrived on time
15.1%30+ min late
0.9%cancelled
548scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late8.8%all scheduled flights
120+ minutes late3.3%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+11.4 mincompleted flights

Which departure time was most reliable for IAH to CMH?

Among qualifying IAH-to-CMH departure window results, Afternoon had the highest on-time rate: 80.5% of 200 flights. Evening was lowest at 73.8% across 347 flights.

Departure windowFlightsOn time30+ minCancelled
Afternoon20080.5%13.5%0.0%
Evening34773.8%16.1%1.4%

Which weekday was most reliable for IAH to CMH?

Among qualifying IAH-to-CMH weekday results, Tuesday had the highest on-time rate: 83.1% of 77 flights. Friday was lowest at 67.0% across 88 flights.

DayFlightsOn time30+ minCancelled
Monday8379.5%12.0%2.4%
Tuesday7783.1%9.1%0.0%
Wednesday8072.5%16.2%1.2%
Thursday8280.5%14.6%0.0%
Friday8867.0%21.6%0.0%
Saturday6382.5%12.7%3.2%
Sunday7570.7%18.7%0.0%

Which airline was most reliable for IAH to CMH?

Only United Airlines met the IAH-to-CMH airline threshold: 76.1% of 543 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
United Airlines54376.1%15.3%0.9%
SkyWest Airlines5100.0%0.0%0.0%

Which month was most reliable for IAH to CMH?

Among qualifying IAH-to-CMH month results, January 2026 had the highest on-time rate: 92.1% of 38 flights. June 2026 was lowest at 56.8% across 37 flights.

MonthFlightsOn time30+ minCancelled
July 20255364.2%28.3%0.0%
August 20255366.0%28.3%1.9%
September 20255687.5%7.1%0.0%
October 20256274.2%17.7%0.0%
November 20255983.1%10.2%0.0%
December 20254173.2%14.6%0.0%
January 20263892.1%2.6%2.6%
February 20262878.6%14.3%0.0%
March 20265280.8%5.8%3.8%
April 20263086.7%6.7%0.0%
May 20263974.4%15.4%2.6%
June 20263756.8%27.0%0.0%

What drove IAH to CMH delay minutes?

Late aircraft was the largest recorded IAH-to-CMH delay category, accounting for 49.5% of 8,904 BTS-attributed delay minutes during July 2025–June 2026.

Airline27.7%
Late aircraft49.5%
National airspace16.3%
Weather6.6%
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.