Aspen (ASE) to Houston (IAH): On-Time Performance
Data through July 2026
The biggest risk when flying ASE to IAH isn't a late arrival — it's not departing at all. 5.8% of scheduled flights on this route were cancelled, several times the typical US rate. When flights do go, 67% land on time, below the national average of 78%.
- On-time
- 67%
- arrived <15 min late
- Avg delay
- 33 min
- completed flights
- Cancelled
- 5.8%
- Flights/day
- 1.7
- last 12 months
- Duration
- 2h 48m
- scheduled
- Distance
- 913 mi
Monthly on-time trend
Best time to fly from ASE to IAH
Aim for departures around 7 a.m. (77% on-time); avoid 3 p.m. departures (54%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 66% | 46 min |
| Tuesday | 71% | 26 min |
| Wednesdaybest | 75% | 20 min |
| Thursday | 74% | 27 min |
| Friday | 62% | 33 min |
| Saturday | 60% | 48 min |
| Sunday | 61% | 32 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft33%
- Airline operations25%
- National airspace system24%
- Weather18%
Frequently asked questions
- How often are flights from ASE to IAH delayed?
- 33% of ASE–IAH flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 33 minutes.
- What is the best time of day to fly from ASE to IAH?
- Departures around 7 a.m. have the best record (77% on-time), while departures around 3 p.m. have the worst (54%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from ASE to IAH?
- The scheduled ASE–IAH flight time averages 2h 48m over 913 miles. Actual arrival times vary — flights on this route land 15+ minutes late 33% of the time.
- How often are ASE to IAH flights cancelled?
- 5.8% of scheduled flights on this route were cancelled between 2024-07 and 2026-07 — several times the typical US rate, so consider earlier departures or backup options.
- What is the worst month to fly from ASE to IAH?
- June 2025 was the roughest month in this dataset, with only 42% of arrivals on time. The best was May 2026 at 100%. If your dates are flexible, that 58-point gap is worth planning around.
Explore related pages
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Based on 1,283 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.