IAH to CMH flight delays
Houston, TX (IAH) Columbus, OH (CMH) · 986 miles
548 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
76.98%
Arrived on time
Within 15 minutes of schedule
0.91%
Cancelled
Share of scheduled flights
71 min
When late, late by
Average across delayed arrivals
18 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The season swings this route hard. In January it ran 37.8 points more punctual than in June — a difference bigger than the one between the best and worst airlines on most routes. If the date is flexible, it is worth more than the carrier.
Only United Airlines flies this route in the published record, so there is no choice to weigh — the route's figures and the airline's are the same figures.
This is a thin route — 548 flights across the whole period. On a route this infrequent a cancellation is far more costly than the rate suggests, because the next departure may not be the same day.
The Houston to Columbus route sits close to the middle of the record — neither notably punctual nor notably late.
Which airline should you fly on this route?
Over January 2025 – August 2026, United Airlines arrived on time most often on IAH to CMH. Flights ran closest to schedule in January and worst in June.
Every airline on IAH to CMH
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| United Airlines | 543 | 76.77% | 0.92% | 71 min | C |
| SkyWest Airlines | 5 | 100% | 0% | — | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
CMH to IAH Columbus back to Houston 75.97% on time COther routes from Houston
Common questions
Are flights from Houston to Columbus usually delayed?
76.98% of flights on the IAH to CMH route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is about the same as the average route in this record.
Which airlines fly from Houston to Columbus?
Only United Airlines appears in the published record on this route, with 543 flights and 76.77% arriving on time.
How often are IAH to CMH flights cancelled?
0.91% of scheduled flights did not operate — about 9 in every thousand. That is in the normal range.
What is the best month to fly Houston to Columbus?
January, when 94.6% of flights arrived on time. The worst was June at 56.8%.
When IAH to CMH flights are late, how late are they?
About 71 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on IAH to CMH during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →