Route Reliability
Houston → Aspen
IAH–ASE · 913 miles · George Bush Intercontinental Airport to Aspen/Pitkin County Airport
- 76%
- Arrive within 15 minutes
- 6 min
- Average arrival delay
- 3.3%
- Cancelled
- 598
- Flights in the data
Data through May 2026.
United Airlines is the only airline in this data on this route, arriving on time 76% of the time across 598 flights. No comparison to make.
What the data says
Morning flights do better here.
IAH–ASE flights departing between 6–9 AM arrived on time 90% of the time, versus 65% between 12–3 PM.
Saturdays have been rough.
IAH–ASE flights arrived on time 87% of the time on Tuesdays and just 69% on Saturdays. That gap is worth planning around.
Keep a backup plan handy.
This route was cancelled 3.3% of the time. Typical for U.S. flights is around 1–2%.
Trending in the right direction.
IAH–ASE flights arrived on time 87% of the time over the last three months in the data, compared with 74% 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
- Mon71%(78 flights)
- Tue87%(71 flights)
- Wed86%(72 flights)
- Thu79%(82 flights)
- Fri72%(79 flights)
- Sat69%(85 flights)
- Sun70%(76 flights)
- 6–9 AM90%(31 flights)
- 9 AM–12 PM78%(191 flights)
- 12–3 PM65%(161 flights)
- 3–6 PM74%(27 flights)
- 6–9 PM84%(133 flights)
Jun 50% → May 86% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 50% | 28 |
| July 2025 | 64% | 50 |
| August 2025 | 62% | 45 |
| September 2025 | 83% | 30 |
| October 2025 | 95% | 20 |
| December 2025 | 69% | 65 |
| January 2026 | 80% | 85 |
| February 2026 | 72% | 74 |
| March 2026 | 89% | 102 |
| April 2026 | 87% | 23 |
| May 2026 | 86% | 21 |
Keep nerding
Based on 598 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.