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

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

Leave before 9 am: 3 in 4 depart on time. After 4 pm it’s 58%.

Best time to leave 12–1 pm 86% arrive on time from ATL

Best single flight F9 3293 ATL 12:33 → DEN 14:00 · 80% on time Avoid F9 3599 ATL 20:40 → DEN 22:16 · 64% 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.

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 3293	ATL 12:33	DEN 14:00	80%
F9 1449	ATL 07:40	DEN 09:03	69%
F9 3599	ATL 20:40	DEN 22:16	64%

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 1449	ATL 07:40	DEN 09:03	3h 23m	179	69%	1.7%	95 min
F9 3293	ATL 12:33	DEN 14:00	3h 27m	361	80%	0.6%	74 min
F9 3599	ATL 20:40	DEN 22:16	3h 36m	229	64%	2.2%	86 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	ATL	DEN	3h 27m	73%	1.3%	769	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