CLT to IAH flight delays & on-time performance
Nonstop flights from Charlotte Douglas International Airport to George Bush Intercontinental Airport · 912 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at CLT or IAH right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Charlotte (CLT) to Houston (IAH) arrived on time 78% of the time in Aug 2025 – Jul 2026, in line with the national average.
- 1.8% were cancelled, and 8% arrived an hour or more late.
- United Airlines was the most punctual airline here (89% on time); Frontier Airlines was the least (72%).
- Departures scheduled around 8am did best (92% on time); around 8pm did worst (64%).
- Tuesday was the most reliable day to fly (88% on time) and Friday the least (72%).
- The largest source of delay minutes was late-arriving aircraft (43%).
Which airline is most on time from CLT to IAH?
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 | 89% | 1.1% | 11 min | 3.3% | 363 |
| American Airlines | 77% | 1.5% | 17 min | 8.6% | 1,614 |
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 75% | 1.8% | 18 min | 11.0% | 111 |
| Frontier Airlines | 72% | 4.6% | 24 min | 12.3% | 239 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am89%206 flights
- 7am89%379 flights
- 8am92%150 flights
- 9am89%84 flights
- 10am81%38 flights
- 11am80%90 flights
- 12pm81%230 flights
- 2pm74%141 flights
- 3pm68%230 flights
- 4pm79%88 flights
- 5pm64%95 flights
- 6pm67%314 flights
- 8pm64%109 flights
- 9pm59%52 flights
- 10pm82%85 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday79%1.9% cancelled
- Tuesday88%1.0% cancelled
- Wednesday83%0.0% cancelled
- Thursday79%1.4% cancelled
- Friday72%0.8% cancelled
- Saturday75%2.7% cancelled
- Sunday74%4.3% 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 aircraft43%
- Airline (crew, maintenance, cleaning, fueling)31%
- Air traffic control & airport congestion20%
- Extreme weather6%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather79%
- Airline (crew, maintenance, cleaning, fueling)19%
- Air traffic control & airport congestion2%
- Security0%
CLT to IAH: common questions
- How often are CLT to IAH flights on time?
- 78% 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 Charlotte to Houston cancelled?
- 1.8% of scheduled flights were cancelled (42 of 2,327).
- How long are typical delays?
- Across all flights the average arrival delay was 17 min (early arrivals count as zero). Flights that were late arrived 74 min behind schedule on average, and 8.3% of flights were an hour or more late.
- How long is taxi time at CLT?
- Flights on this route spent 20 min taxiing from the gate to takeoff on average.
Related routes
Return trip: IAH to CLT — 81% on time
More flights from Charlotte
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: CLT → IAH, nonstop flights by US airlines that report to the DOT. How we calculate this.