Leave before 9 am: 88% depart on time. After 4 pm it’s barely half.
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).
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.
No Southwest flight on this route ran 150+ times in the year.
All 8 Southwest 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.
| WN 3054 | MDW 07:15 | ATL 10:05 | 1h 50m | 42 | 93% | 0.0% | 19 min |
| WN 4154 | MDW 08:55 | ATL 11:45 | 1h 50m | 42 | 86% | 0.0% | 41 min |
| WN 4606 | MDW 11:00 | ATL 13:50 | 1h 50m | 26 | 38% | 0.0% | 66 min |
| WN 1306 | MDW 13:00 | ATL 15:55 | 1h 55m | 16 | 93% | 6.2% | 19 min |
| WN 4592 | MDW 14:40 | ATL 17:35 | 1h 55m | 41 | 41% | 2.4% | 80 min |
| WN 251 | MDW 15:55 | ATL 18:50 | 1h 55m | 16 | 47% | 6.2% | 33 min |
| WN 734 | MDW 18:05 | ATL 21:02 | 1h 58m | 16 | 44% | 0.0% | 46 min |
| WN 4140 | MDW 18:50 | ATL 21:45 | 1h 55m | 34 | 36% | 2.9% | 61 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.
| Southwest | MDW | ATL | 1h 55m | 77% | 1.2% | 1,544 | Flying now |
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