Best Time to Fly ASE to ORD: On-Time Stats by Hour & Airline
Aspen Pitkin County Sardy Field → Chicago O'Hare International
Data through July 2026 · Last updated October 18, 2026
1,133 flights were scheduled from Aspen (ASE) to Chicago (ORD) in the last 12 months, and 63.8% of those that flew arrived on time, 13.8 points below the US average of 77.6%.
SkyWest Airlines was the only reporting airline with regular flights on this route.
October has been the best month (77% on time) and Saturday the weakest day of the week (55%).
5.8% of flights were cancelled, versus 1.8% nationally.
ASE to ORD 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 | 63.8% | 102 min | 5.8% | 1,133 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly ASE to ORD
On-time arrival % by scheduled departure hour (local time), 2,063 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | 79.2% | 3.7% | 136 |
| 8am–9am | 69.9% | 3.9% | 128 |
| 9am–10am | 66.8% | 2.1% | 387 |
| 10am–11am | 57.1% | 8.3% | 48 |
| 11am–12pm | 63.1% | 5.7% | 212 |
| 12pm–1pm | 66.0% | 5.2% | 696 |
| 1pm–2pm | 36.0% | 12.9% | 132 |
| 2pm–3pm | 55.3% | 13.6% | 44 |
| 3pm–4pm | 47.3% | 9.8% | 82 |
| 4pm–5pm | 51.1% | 9.6% | 197 |
| 7pm–8pm | Limited data | 1 | |
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 ORD
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Christmas & New Year (Dec 20 - Jan 3) | 41.7% | -23.6 pts | 6.5% | 155 |
| Summer peak (Jun 15 - Aug 15) | 59.9% | -5.4 pts | 7.5% | 333 |
| All other days | 65.3% | — | 5.4% | 1,575 |
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).