3,527 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 92% depart on time. After 4 pm it’s 64%.

Best time to leave 9–10 am 91% arrive on time from MDW

Best single flight DL 1285 MDW 06:00 → ATL 08:55 · 90% on time Avoid F9 2292 MDW 06:00 → ATL 09:19 · 71% 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).

MDW

% 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	88%	2.8%	98 min
Southwest	1,544	77%	1.2%	57 min
Frontier	621	72%	2.6%	53 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 1285	MDW 06:00	ATL 08:55	90%
DL 1063	MDW 11:05	ATL 14:01	90%
DL 2417	MDW 12:50	ATL 15:49	86%
F9 2780	MDW 12:04	ATL 15:10	78%
F9 2292	MDW 06:00	ATL 09:19	71%

All 15 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	MDW	ATL	2h 02m	88%	2.8%	1,362	Flying now
Southwest	MDW	ATL	1h 55m	77%	1.2%	1,544	Flying now
Frontier	MDW	ATL	2h 06m	72%	2.6%	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