Leave before 9 am: 92% depart on time. After 4 pm it’s almost 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 7 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 4611 | MDW 07:40 | BOS 10:55 | 2h 15m | 58 | 90% | 0.0% | 28 min |
| WN 1405 | MDW 09:10 | BOS 12:28 | 2h 18m | 50 | 92% | 0.0% | 24 min |
| WN 4716 | MDW 12:30 | BOS 15:50 | 2h 20m | 26 | 50% | 0.0% | 65 min |
| WN 2641 | MDW 12:45 | BOS 16:05 | 2h 20m | 16 | 75% | 0.0% | 47 min |
| WN 4975 | MDW 16:00 | BOS 19:20 | 2h 20m | 58 | 34% | 1.7% | 72 min |
| WN 1374 | MDW 18:05 | BOS 21:22 | 2h 18m | 16 | 33% | 6.2% | 99 min |
| WN 232 | MDW 19:35 | BOS 22:52 | 2h 18m | 26 | 39% | 11.5% | 105 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 | BOS | 2h 15m | 68% | 1.2% | 1,360 | 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