Historical on-time performance
Columbus to Houston
986 miData through May 2026Source: US DOT · BTS
Flights on CMH–IAH arrive on time 73% of the time over the last 12 months.
On-time rate73%arrived within 15 min
p90 delay80 min1 in 10 flights is worse (tail risk)
Cancelled1.1%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-time73%Medianon timep9080 minCancel1.1%Flights534
Why flights run late
Delay causes
- Airline29%
- Weather3%
- Air traffic (NAS)27%
- Late aircraft41%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline50%
- Weather50%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 6 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 CMH → IAH
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 83% on time.
- Mornings83% on time · p90 20 min · 1,085 flights
- Evenings67% on time · p90 75 min · 386 flights
- Afternoons62% on time · p90 80 min · 325 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 70% to 81% on time.
- Saturdays81% on time · p90 40 min · 228 flights
- Wednesdays80% on time · p90 30 min · 264 flights
- Tuesdays78% on time · p90 35 min · 260 flights
- Thursdays75% on time · p90 40 min · 263 flights
- Mondays75% on time · p90 45 min · 264 flights
- Fridays73% on time · p90 55 min · 271 flights
- Sundays70% on time · p90 65 min · 247 flights
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