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

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

No clear winner: Frontier’s ATL → MDW flights land within a few points of 2 in 3 on time whatever the hour.

Best time to leave 10–11 am 75% arrive on time from ATL

Best single flight F9 2291 ATL 21:00 → MDW 22:03 · 68% on time Avoid F9 2779 ATL 10:05 → MDW 11:07 · 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 2291	ATL 21:00	MDW 22:03	68%
F9 2779	ATL 10:05	MDW 11:07	64%

All 2 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 2779	ATL 10:05	MDW 11:07	2h 04m	304	64%	2.6%	96 min
F9 2291	ATL 21:00	MDW 22:03	2h 04m	288	68%	2.4%	92 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	MDW	2h 04m	66%	2.4%	621	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