3,526 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 88% depart on time. After 4 pm it’s 63%.

Best time to leave 6–7 am 96% arrive on time from ATL

Best single flight DL 2417 ATL 11:05 → MDW 12:05 · 88% 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.

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	1,362	83%	2.4%	57 min
Southwest	1,543	76%	1.5%	60 min
Frontier	621	66%	2.4%	94 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 2417	ATL 11:05	MDW 12:05	88%
DL 1063	ATL 09:09	MDW 10:09	88%
DL 1076	ATL 21:15	MDW 22:17	77%
F9 2291	ATL 21:00	MDW 22:03	68%
F9 2779	ATL 10:05	MDW 11:07	64%

All 13 flights on this route →

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	MDW	2h 00m	83%	2.4%	1,362	Flying now
Southwest	ATL	MDW	1h 55m	76%	1.5%	1,543	Flying now
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