Route on-time record
ATL to ASE: most on-time flights and the best time to fly
Atlanta (Hartsfield Jackson Atlanta International Airport) to Aspen (Aspen-Pitkin County Airport (Sardy Field)). 449 nonstop flights in Jun 2025 to May 2026, 73% arrived within 15 minutes and 1.6% were cancelled. The most reliable flight number was SkyWest 4011 at 9:40 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
ATL → ASE
Atlanta to Aspen: 449 nonstop flights a year
On time (12 months)
73%
Cancelled
1.6%
avg delay 25 min
Best time to leave
9 AM to noon
76% on time vs 64% noon to 3 PM
Most reliable airline
SkyWest
72% chance on time
Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Most reliable nonstop flights
Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.
#1 · SkyWest 4011 · sold as United Express, Delta Connection, American Eagle or Alaska
9:40 AM → 11:40 AM4h 00m nonstop
Local times, typical schedule. Last flown 2026-05-31.
75%
chance on time
- On time (history)
- 76%
- Cancelled
- 1.5%
- Avg arrival delay
- 21 min
- Arrived on time 76% of the time (307 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (9 AM to noon: 76% on time; Noon to 3 PM: 64%).
- Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 ground stops and delay programs started).
- Lands inside ASE's trouble window: 85% of its 46 ground stops and delay programs started between 6 AM and noon.
Strong track record · 307 flights
Find 9:40 AM flight fares Opens this date on Aviasales#2 · SkyWest 3680 · sold as United Express, Delta Connection, American Eagle or Alaska
12:15 PM → 2:13 PM3h 58m nonstop
Local times, typical schedule. Last flown 2026-04-12.
67%
chance on time
- On time (history)
- 66%
- Cancelled
- 2.0%
- Avg arrival delay
- 35 min
- Arrived on time 66% of the time (89 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (Noon to 3 PM: 64% on time; 9 AM to noon: 76%).
- Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 ground stops and delay programs started).
Moderate track record · 89 flights
Find 12:15 PM flight fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)72%
449 flights · 73% on time as flown · 1.6% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- 9 AM to noon76%
334 flights · avg delay 21 min
- Noon to 3 PM64%
114 flights · avg delay 35 min
Best day: Tuesday (80%). Worst: Saturday (61%).
On time by month
All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.
What delays this route
- Airline (crew, maintenance, boarding)55%
- Air traffic control and airport volume25%
- Severe weather21%
Share of delay minutes by the cause airlines report to the US DOT.
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure
ATL to ASE questions
- What time of day is best to fly ATL to ASE?
- 9 AM to noon: 76% of flights arrived on time, against 64% for departures noon to 3 PM.
- Which airline is most on time from ATL to ASE?
- SkyWest, with a season-adjusted 72% chance of operating and arriving on time over 449 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
- What is the worst month for delays on ATL to ASE?
- February (55% on time); the best was September (83%), averaged over Jun 2023 to May 2026.
- Is this a prediction for my flight?
- No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.
More routes from ATL
- ASE to ATL (return)
- ATL to LGA 73%
- ATL to MCO 69%
- ATL to FLL 69%
- ATL to DCA 69%
- ATL to DFW 73%
- ATL to ORD 71%
- ATL to EWR 72%
- ATL to MIA 70%
- ATL to TPA 71%
- ATL to PHL 73%
- ATL to DEN 76%
- ATL to BWI 74%
Live status: FAA delays and ground stops