Route Reliability
Aspen → Houston
ASE–IAH · 913 miles · Aspen/Pitkin County Airport to George Bush Intercontinental Airport
- 72%
- Arrive within 15 minutes
- 23 min
- Average arrival delay
- 5.8%
- Cancelled
- 600
- Flights in the data
Data through May 2026.
United Airlines is the only airline in this data on this route, arriving on time 72% of the time across 600 flights. No comparison to make.
What the data says
Morning flights do better here.
ASE–IAH flights departing between 9 AM–12 PM arrived on time 82% of the time, versus 57% between 3–6 PM.
Saturdays have been rough.
ASE–IAH flights arrived on time 83% of the time on Wednesdays and just 66% on Saturdays. That gap is worth planning around.
Keep a backup plan handy.
This route was cancelled 5.8% of the time. Typical for U.S. flights is around 1–2%.
Ticking up lately.
ASE–IAH flights arrived on time 82% of the time over the last three months in the data, compared with 77% in the three months before that.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon68%(82 flights)
- Tue75%(71 flights)
- Wed83%(75 flights)
- Thu77%(83 flights)
- Fri68%(81 flights)
- Sat66%(85 flights)
- Sun67%(86 flights)
- 6–9 AM81%(160 flights)
- 9 AM–12 PM82%(112 flights)
- 12–3 PM66%(195 flights)
- 3–6 PM57%(96 flights)
Jun 42% → May 100% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 42% | 31 |
| July 2025 | 57% | 56 |
| August 2025 | 57% | 46 |
| September 2025 | 77% | 30 |
| October 2025 | 67% | 21 |
| December 2025 | 69% | 67 |
| January 2026 | 81% | 86 |
| February 2026 | 81% | 74 |
| March 2026 | 78% | 107 |
| April 2026 | 68% | 25 |
| May 2026 | 100% | 20 |
Keep nerding
Based on 600 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.