IAH to ASE flight delays & on-time performance
Nonstop flights from George Bush Intercontinental Airport to Aspen-Pitkin County Airport (Sardy Field) · 913 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at IAH or ASE 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 Aspen (ASE) arrived on time 75% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 2.7% were cancelled, and 13% arrived an hour or more late.
- SkyWest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 7pm did best (93% on time); around 4pm did worst (67%).
- Wednesday was the most reliable day to fly (90% on time) and Sunday the least (65%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (42%).
Which airline is most on time from IAH to ASE?
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 |
|---|---|---|---|---|---|
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 75% | 2.7% | 24 min | 13.4% | 624 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am90%32 flights
- 9am71%191 flights
- 10am78%54 flights
- 11am80%16 flights
- 12pm69%125 flights
- 4pm67%88 flights
- 6pm88%99 flights
- 7pm93%19 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday68%1.1% cancelled
- Tuesday83%1.3% cancelled
- Wednesday90%2.4% cancelled
- Thursday80%1.1% cancelled
- Friday73%3.1% cancelled
- Saturday68%4.2% cancelled
- Sunday65%5.4% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)42%
- Air traffic control & airport congestion27%
- Late-arriving aircraft20%
- Extreme weather11%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Air traffic control & airport congestion0%
- Security0%
IAH to ASE: common questions
- How often are IAH to ASE 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 Aspen cancelled?
- 2.7% of scheduled flights were cancelled (17 of 624).
- How long are typical delays?
- Across all flights the average arrival delay was 24 min (early arrivals count as zero). Flights that were late arrived 93 min behind schedule on average, and 13.4% of flights were an hour or more late.
- How long is taxi time at IAH?
- Flights on this route spent 22 min taxiing from the gate to takeoff on average.
Related routes
Return trip: ASE to IAH — 74% 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 → ASE, nonstop flights by US airlines that report to the DOT. How we calculate this.