Historical on-time performance
Houston to Columbus
986 miData through Dec 2025Source: 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)
Cancelled0.7%of scheduled flights
based on 569 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 minCancel0.7%Flights569
Why flights run late
Delay causes
- Airline33%
- Weather7%
- Air traffic (NAS)12%
- Late aircraft48%
- 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 IAH → CMH
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Middays are the most reliable time of day to fly this route — 79% on time.
- Middays79% on time · p90 50 min · 814 flights
- Evenings72% on time · p90 55 min · 723 flights
- Overnights61% on time · p90 95 min · 348 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 65% to 78% on time.
- Tuesdays78% on time · p90 65 min · 281 flights
- Saturdays76% on time · p90 40 min · 223 flights
- Wednesdays74% on time · p90 45 min · 283 flights
- Thursdays74% on time · p90 60 min · 278 flights
- Mondays74% on time · p90 70 min · 281 flights
- Sundays69% on time · p90 80 min · 262 flights
- Fridays65% on time · p90 75 min · 280 flights
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