Best Time to Fly ASE to IAH: On-Time Stats by Hour & Airline
Aspen Pitkin County Sardy Field → George Bush Intercontinental/Houston
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 74.3% of Aspen (ASE) to Houston (IAH) flights arrived on time (626 scheduled flights). That is 3.3 points below the national average of 77.6%.
SkyWest Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Thursday was the most reliable day (76% on time) and April the worst month (44%).
The cancellation rate was 4.6% (US average 1.8%).
ASE to IAH on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlines | 74.3% | 102 min | 4.6% | 626 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly ASE to IAH
On-time arrival % by scheduled departure hour (local time), 1,222 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | 77.9% | 6.1% | 361 |
| 8am–9am | Limited data | 10 | |
| 9am–10am | Limited data | 1 | |
| 11am–12pm | 68.3% | 4.1% | 195 |
| 12pm–1pm | Limited data | 1 | |
| 1pm–2pm | 64.1% | 4.6% | 431 |
| 2pm–3pm | Limited data | 24 | |
| 3pm–4pm | 54.6% | 9.5% | 169 |
| 4pm–5pm | Limited data | 9 | |
| 5pm–6pm | Limited data | 21 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on ASE to IAH
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | Limited data | 7 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 50.0% | -20.9 pts | 7.7% | 117 |
| Summer peak (Jun 15 - Aug 15) | 62.0% | -8.9 pts | 4.7% | 235 |
| All other days | 70.9% | — | 5.8% | 863 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).