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Route Reliability

Columbus → Houston

CMH–IAH · 986 miles · John Glenn Columbus International Airport to George Bush Intercontinental Airport

80
Pretty Reliable
WanderNerd Reliability Score
79%
Arrive within 15 minutes
8 min
Average arrival delay
1.4%
Cancelled
995
Flights in the data

Data through May 2026.

United Airlines is the only airline in this data on this route, arriving on time 79% of the time across 995 flights. No comparison to make.

What the data says

Morning-you made the right choice.

CMH–IAH flights departing between 6–9 AM arrived on time 86% of the time, versus 68% between 3–6 PM.

Sunday scaries are real for this one.

CMH–IAH flights arrived on time 85% of the time on Thursdays. On Sundays: 73%.

Slipping a little lately.

CMH–IAH flights arrived on time 81% of the time over the last three months in the data, compared with 85% in the three months before that.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon75%(150 flights)
  • Tue84%(122 flights)
  • Wed83%(144 flights)
  • Thu85%(149 flights)
  • Fri75%(148 flights)
  • Sat76%(120 flights)
  • Sun73%(146 flights)
On-time by departure window
  • 6–9 AM86%(357 flights)
  • 9 AM–12 PM84%(265 flights)
  • 3–6 PM68%(357 flights)
On-time trend by month
76%
May

Jun 69% → May 76% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202569%86
July 202570%87
August 202572%83
September 202582%77
October 202583%88
November 202575%80
December 202573%78
January 202691%76
February 202690%72
March 202686%79
April 202681%86
May 202676%87

Same trip, other airports

Keep nerding

Based on 995 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.