Chicago (ORD) to Aspen (ASE): On-Time Performance
Data through July 2026
When you fly ORD to ASE matters as much as anything else about the booking: the route swung from 86% on-time in May 2026 to just 41% in February 2025. Across the full period the route averages 57% on-time against a national 78%.
- On-time
- 57%
- arrived <15 min late
- Avg delay
- 37 min
- completed flights
- Cancelled
- 2.6%
- Flights/day
- 3.1
- last 12 months
- Duration
- 3h 18m
- scheduled
- Distance
- 1,013 mi
Monthly on-time trend
Best time to fly from ORD to ASE
Aim for departures around 7 a.m. (67% on-time); avoid 10 a.m. departures (42%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 61% | 29 min |
| Tuesdaybest | 64% | 39 min |
| Wednesday | 64% | 39 min |
| Thursday | 59% | 28 min |
| Friday | 46% | 42 min |
| Saturday | 53% | 44 min |
| Sunday | 55% | 43 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft19%
- Airline operations35%
- National airspace system27%
- Weather19%
Frequently asked questions
- How often are flights from ORD to ASE delayed?
- 43% of ORD–ASE 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 37 minutes.
- What is the best time of day to fly from ORD to ASE?
- Departures around 7 a.m. have the best record (67% on-time), while departures around 10 a.m. have the worst (42%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from ORD to ASE?
- The scheduled ORD–ASE flight time averages 3h 18m over 1,013 miles. Actual arrival times vary — flights on this route land 15+ minutes late 43% of the time.
- How often are ORD to ASE flights cancelled?
- 2.6% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, slightly above the national rate of 1.6%.
- What is the worst month to fly from ORD to ASE?
- February 2025 was the roughest month in this dataset, with only 41% of arrivals on time. The best was May 2026 at 86%. If your dates are flexible, that 45-point gap is worth planning around.
Explore related pages
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Related guides
Based on 2,126 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.