Historical on-time performance
Columbus to Houston
986 miData through Dec 2025Source: US DOT · BTS
Flights on CMH–IAH arrive on time 72% of the time over the last 12 months.
On-time rate72%arrived within 15 min
p90 delay65 min1 in 10 flights is worse (tail risk)
Cancelled1.1%of scheduled flights
based on 570 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesOn-time72%Medianon timep9065 minCancel1.1%Flights570
Why flights run late
Delay causes
- Airline34%
- Weather3%
- Air traffic (NAS)25%
- Late aircraft39%
- Security0%
Most delay minutes here are attributed to Late aircraft.
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 (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 81% on time.
- Mornings81% on time · p90 25 min · 1,088 flights
- Evenings67% on time · p90 75 min · 377 flights
- Afternoons59% on time · p90 95 min · 424 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 69% to 78% on time.
- Saturdays78% on time · p90 45 min · 231 flights
- Wednesdays76% on time · p90 40 min · 284 flights
- Tuesdays74% on time · p90 40 min · 282 flights
- Mondays73% on time · p90 50 min · 281 flights
- Thursdays72% on time · p90 50 min · 278 flights
- Fridays71% on time · p90 60 min · 279 flights
- Sundays69% on time · p90 55 min · 255 flights
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