Historical on-time performance
Houston to Cincinnati
871 miData through Dec 2025Source: US DOT · BTS
Flights on IAH–CVG arrive on time 71% of the time over the last 12 months.
On-time rate71%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled0.8%of scheduled flights
based on 497 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesOn-time71%Medianon timep9050 minCancel0.8%Flights497
Why flights run late
Delay causes
- Airline26%
- Weather5%
- Air traffic (NAS)13%
- Late aircraft56%
- 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 → CVG
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 64% to 82% on time.
- Middays82% on time · p90 40 min · 552 flights
- Mornings80% on time · p90 55 min · 148 flights · limited
- Afternoons67% on time · p90 70 min · 60 flights · limited
- Evenings65% on time · p90 75 min · 579 flights
- Overnights64% on time · p90 65 min · 562 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 65% to 76% on time.
- Wednesdays76% on time · p90 55 min · 277 flights
- Tuesdays75% on time · p90 50 min · 251 flights
- Thursdays72% on time · p90 65 min · 277 flights
- Fridays72% on time · p90 50 min · 280 flights
- Saturdays71% on time · p90 65 min · 234 flights
- Mondays66% on time · p90 65 min · 298 flights
- Sundays65% on time · p90 70 min · 284 flights
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