Leave before 9 am: 87% 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 9 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 4566 | BWI 06:55 | BUF 08:10 | 1h 15m | 42 | 86% | 0.0% | 24 min |
| WN 762 | BWI 10:50 | BUF 12:05 | 1h 15m | 34 | 85% | 0.0% | 28 min |
| WN 279 | BWI 10:55 | BUF 12:10 | 1h 15m | 16 | 81% | 0.0% | 33 min |
| WN 894 | BWI 13:00 | BUF 14:15 | 1h 15m | 34 | 79% | 0.0% | 51 min |
| WN 766 | BWI 13:05 | BUF 14:20 | 1h 15m | 16 | 62% | 0.0% | 38 min |
| WN 768 | BWI 17:55 | BUF 19:15 | 1h 20m | 41 | 58% | 12.2% | 76 min |
| WN 1742 | BWI 18:35 | BUF 19:58 | 1h 22m | 16 | 85% | 18.8% | 308 min |
| WN 3946 | BWI 21:25 | BUF 22:42 | 1h 18m | 16 | 50% | 12.5% | 54 min |
| WN 4577 | BWI 22:55 | BUF 00:15 | 1h 15m | 33 | 68% | 6.1% | 73 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 | BWI | BUF | 1h 15m | 78% | 1.9% | 1,748 | 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