Leave before 9 am: 92% depart on time. After 4 pm it’s 43%.
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 11 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 727 | BOS 05:30 | BWI 07:05 | 1h 35m | 58 | 89% | 1.7% | 81 min |
| WN 487 | BOS 07:15 | BWI 08:55 | 1h 40m | 66 | 66% | 3.0% | 71 min |
| WN 732 | BOS 08:55 | BWI 10:30 | 1h 35m | 49 | 92% | 0.0% | 92 min |
| WN 3038 | BOS 11:35 | BWI 13:10 | 1h 35m | 16 | 75% | 0.0% | 26 min |
| WN 733 | BOS 13:20 | BWI 15:00 | 1h 40m | 33 | 91% | 0.0% | 28 min |
| WN 2247 | BOS 14:25 | BWI 16:00 | 1h 35m | 16 | 64% | 12.5% | 42 min |
| WN 1053 | BOS 15:55 | BWI 17:40 | 1h 45m | 26 | 50% | 3.8% | 73 min |
| WN 1898 | BOS 17:20 | BWI 19:10 | 1h 50m | 57 | 52% | 5.3% | 84 min |
| WN 3543 | BOS 18:40 | BWI 20:25 | 1h 45m | 16 | 36% | 6.2% | 99 min |
| WN 735 | BOS 19:50 | BWI 21:35 | 1h 45m | 26 | 36% | 0.0% | 67 min |
| WN 736 | BOS 22:15 | BWI 23:55 | 1h 40m | 34 | 55% | 2.9% | 64 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 | BOS | BWI | 1h 40m | 78% | 2.1% | 2,374 | 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