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

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

Leave before 9 am: 83% depart on time. After 4 pm it’s barely half.

Best time to leave 6–7 am 86% arrive on time from ATL

Best single flight F9 1441 ATL 06:35 → ORD 07:55 · 73% on time Avoid F9 3397 ATL 18:22 → ORD 19:52 · 58% 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 1441	ATL 06:35	ORD 07:55	73%
F9 3397	ATL 18:22	ORD 19:52	58%

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 1441	ATL 06:35	ORD 07:55	2h 20m	342	73%	1.8%	99 min
F9 3397	ATL 18:22	ORD 19:52	2h 30m	244	58%	5.3%	118 min
F9 1595	ATL 18:22	ORD 19:52	2h 30m	123	57%	2.4%	127 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	ORD	2h 30m	65%	3.1%	712	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