Flights Houston → Denver
IAH → DEN
Route overview
The flight route from Houston to Denver operates with a high level of punctuality, with 84% of flights arriving on time. The average delay for the route is approximately 10.7 minutes, and it sees over eleven thousand flights annually. A variety of aircraft types serve this busy corridor, including Airbus A320s, A319s, Boeing 757-200s, 787-8 Dreamliners, as well as various Boeing 737 models.
Your rights on this US flight (DOT)
US flights have no statutory cash compensation for delays. Under the US DOT rules, if your flight is cancelled or significantly changed and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Amenities for controllable delays depend on each airline's contract of carriage.
US flight refund rules & checker →General information, not legal advice.
The Houston (IAH) → Denver (DEN) route is operated by Frontier Airlines, Spirit Airlines, United Airlines. Across 1524 flights monitored in recent months, 81% arrived on time (within 15 min of schedule), with an average delay of 13 minutes. The cancellation rate is 2.23%. FlightGuard's average computed risk is 26.5/100 (medium), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At Denver the average ATFM delay is 2.0 minutes (main cause: atfm). Departing from Houston the average ATFM delay is 2.0 minutes.
Heading to Denver: what to expect in this direction
Flying from Houston (IAH) to Denver (DEN) heads north-west for about 1,387 km, a flight time of roughly 2h 9m.
Departures from Houston on this leg cluster in the overnight window: about 42% of IAH-DEN flights take off then.
Air-traffic congestion: departing Houston the average ATFM delay is 2.0 min (atfm); arriving into Denver it is 2.0 min (atfm).
Across 1,524 tracked IAH-DEN flights, 81% left on time with an average delay of 13 min and a 2.2% cancellation rate.
Route facts
Flights on this route
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Airline punctuality on this route
| Airline | On-time | Average delay | Cancellations |
|---|---|---|---|
| United Airlines (UA) | 74% | 10 min | 6.9% |
| Spirit Airlines (NK) | 74% | 10 min | 1.5% |
| Frontier Airlines (F9) | 74% | 15 min | 2.2% |
Airlines operating IAH-DEN
Airports
Frequently asked questions about IAH-DEN
On the Houston (IAH) -> Denver (DEN) route, on-time performance is 81% with an average delay of 13 minutes, based on 1524 tracked flights.
The cancellation rate on Houston-Denver is 2.23% across 1524 monitored flights.
The route is operated by 3 airlines: Frontier Airlines, Spirit Airlines, United Airlines.
Enter your flight number on FlightGuard for a real-time analysis based on 9 factors: weather at Denver, ATC delays, strikes, NOTAMs, fuel, airline punctuality and recent trends.
US flights have no statutory cash compensation for delays. Under US DOT rules, if the airline cancels or significantly changes your flight and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Meals or hotels for controllable delays depend on each airline's contract of carriage.
