Historical on-time performance
Houston to Columbus
986 miData through May 2026Source: US DOT · BTS
Flights on IAH–CMH arrive on time 75% of the time over the last 12 months.
On-time rate75%arrived within 15 min
p90 delay60 min1 in 10 flights is worse (tail risk)
Cancelled0.9%of scheduled flights
based on 534 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesOn-time75%Medianon timep9060 minCancel0.9%Flights534
Why flights run late
Delay causes
- Airline29%
- Weather6%
- Air traffic (NAS)15%
- Late aircraft49%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline40%
- Weather60%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 5 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly IAH → CMH
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Middays are the most reliable time of day to fly this route — 80% on time.
- Middays80% on time · p90 45 min · 726 flights
- Evenings73% on time · p90 50 min · 800 flights
- Overnights61% on time · p90 95 min · 267 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 69% to 78% on time.
- Tuesdays78% on time · p90 55 min · 258 flights
- Saturdays76% on time · p90 40 min · 220 flights
- Mondays76% on time · p90 60 min · 265 flights
- Wednesdays75% on time · p90 35 min · 264 flights
- Thursdays75% on time · p90 55 min · 264 flights
- Sundays70% on time · p90 75 min · 253 flights
- Fridays69% on time · p90 70 min · 272 flights
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