IAH to CVG flight delays & on-time performance
Nonstop flights from George Bush Intercontinental Airport to Cincinnati Northern Kentucky International Airport · 871 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at IAH or CVG right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Houston (IAH) to Cincinnati (CVG) arrived on time 75% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 0.9% were cancelled, and 8% arrived an hour or more late.
- Departures scheduled around 12pm did best (83% on time); around 8pm did worst (69%).
- Tuesday was the most reliable day to fly (87% on time) and Friday the least (63%).
- The largest source of delay minutes was late-arriving aircraft (62%).
Which airline is most on time from IAH to CVG?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| United Airlines | 76% | 0.8% | 15 min | 7.9% | 649 |
| Frontier Airlines | 67% | 2.9% | 19 min | 9.1% | 34 |
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 63% | 0.0% | 22 min | 12.5% | 8 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 12pm83%298 flights
- 2pm72%18 flights
- 8pm69%347 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday71%1.0% cancelled
- Tuesday87%0.0% cancelled
- Wednesday80%0.0% cancelled
- Thursday78%0.9% cancelled
- Friday63%0.0% cancelled
- Saturday74%1.2% cancelled
- Sunday73%2.7% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft62%
- Airline (crew, maintenance, cleaning, fueling)22%
- Air traffic control & airport congestion14%
- Extreme weather2%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather67%
- Airline (crew, maintenance, cleaning, fueling)33%
- Air traffic control & airport congestion0%
- Security0%
IAH to CVG: common questions
- How often are IAH to CVG flights on time?
- 75% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Houston to Cincinnati cancelled?
- 0.9% of scheduled flights were cancelled (6 of 691).
- How long are typical delays?
- Across all flights the average arrival delay was 16 min (early arrivals count as zero). Flights that were late arrived 58 min behind schedule on average, and 8.0% of flights were an hour or more late.
- How long is taxi time at IAH?
- Flights on this route spent 23 min taxiing from the gate to takeoff on average.
Related routes
Return trip: CVG to IAH — 83% on time
More flights from Houston
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: IAH → CVG, nonstop flights by US airlines that report to the DOT. How we calculate this.