450 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

No clear winner: Delta’s ATL → ASE flights land within a few points of 3 in 4 on time whatever the hour.

Best time to leave 9–10 am 77% arrive on time from ATL

Best single flight DL 4011 ATL 09:45 → ASE 11:23 · 77% on time

Time of day × airport

Share of this route’s flights leaving within 15 minutes, by airport and scheduled departure hour, over Aug 2025 – Jul 2026. Blank: no flights then (or fewer than 40 in the year).

ATL

% of this route’s flights leaving within 15 min (small number: flights in the Jun 6 – Jul 31, 2026 schedule): 85+75–8465–7455–64under 55

Pick an hour to see this route’s flights leaving then.

Airlines on this route

Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.


Delta (incl. SkyWest)	450	74%	1.6%	85 min

Flights, best and worst

Flights in the Jun 6 – Jul 31, 2026 schedule that ran 150+ times in the year. Times are local. Pick a flight for its history.


DL 4011flown by SkyWest	ATL 09:45	ASE 11:23	77%

Nonstops by airline and airport

Arriving within 15 minutes, Aug 2025 – Jul 2026. Pick a row to see that airline’s flights on that airport pair.


Delta	ATL	ASE	3h 59m	74%	1.6%	450	Flying now

Alternatives with one stop

All connections →


United Details →	ATL 11:10 → DEN 12:28UA 1327	1h 12m Denver	DEN 13:40 → ASE 14:44UA 5771 · flown by SkyWest	5h 34m	95%	65%
United Details →	ATL 16:22 → DEN 18:08UA 235	1h 02m Denver	DEN 19:10 → ASE 20:11UA 5779 · flown by SkyWest	5h 49m	79%	52%

Flying on a particular day? Pick a date above and the same ranking uses our forecast odds for each flight that day: Tomorrow.

About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON