Atlanta (ATL) to Aspen (ASE): On-Time Performance
Data through July 2026
When you fly ATL to ASE matters as much as anything else about the booking: the route swung from 87% on-time in September 2025 to just 41% in December 2024. Across the full period the route averages 66% on-time against a national 78%.
- On-time
- 66%
- arrived <15 min late
- Avg delay
- 25 min
- completed flights
- Cancelled
- 1.3%
- Flights/day
- 1.2
- last 12 months
- Duration
- 3h 46m
- scheduled
- Distance
- 1,304 mi
Monthly on-time trend
Best time to fly from ATL to ASE
Aim for departures around 9 a.m. (70% on-time); avoid 12 p.m. departures (59%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 65% | 34 min |
| Tuesdaybest | 74% | 18 min |
| Wednesday | 72% | 16 min |
| Thursday | 63% | 28 min |
| Friday | 67% | 22 min |
| Saturday | 60% | 34 min |
| Sunday | 62% | 26 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Airline operations55%
- National airspace system20%
- Weather25%
Frequently asked questions
- How often are flights from ATL to ASE delayed?
- 34% of ATL–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 25 minutes.
- What is the best time of day to fly from ATL to ASE?
- Departures around 9 a.m. have the best record (70% on-time), while departures around 12 p.m. have the worst (59%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from ATL to ASE?
- The scheduled ATL–ASE flight time averages 3h 46m over 1,304 miles. Actual arrival times vary — flights on this route land 15+ minutes late 34% of the time.
- How often are ATL to ASE flights cancelled?
- 1.3% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from ATL to ASE?
- December 2024 was the roughest month in this dataset, with only 41% of arrivals on time. The best was September 2025 at 87%. If your dates are flexible, that 46-point gap is worth planning around.
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Related guides
Based on 932 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.