Showing Frontier only (incl. its regional partners)All airlines ×

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

Leave before 9 am: 87% depart on time. After 4 pm it’s barely half.

Best time to leave 12–1 am 89% arrive on time from DEN

Best single flight F9 3294 DEN 06:30 → ATL 11:38 · 88% on time Avoid F9 3600 DEN 09:58 → ATL 15:09 · 75% 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).

DEN

% 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.

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.


F9 3294	DEN 06:30	ATL 11:38	88%
F9 3600	DEN 09:58	ATL 15:09	75%

All 3 Frontier flights in the current schedule

Every flight that flew in the Jun 6 – Jul 31, 2026 schedule, with its record over Aug 2025 – Jul 2026. Times are local. Click a column to sort.


F9 3294	DEN 06:30	ATL 11:38	3h 08m	295	88%	0.0%	60 min
F9 3600	DEN 09:58	ATL 15:09	3h 10m	331	75%	0.6%	61 min
F9 1450	DEN 23:46	ATL 05:02	3h 16m	148	65%	2.0%	64 min

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.


Frontier	DEN	ATL	3h 10m	78%	0.8%	775	Flying now

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