Leave before 9 am: 95% depart on time. After 4 pm it’s 3 in 5.
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 6 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 756 | BUF 06:05 | BWI 07:20 | 1h 15m | 58 | 97% | 0.0% | 60 min |
| WN 757 | BUF 09:00 | BWI 10:15 | 1h 15m | 57 | 86% | 1.8% | 45 min |
| WN 758 | BUF 11:00 | BWI 12:15 | 1h 15m | 50 | 90% | 2.0% | 71 min |
| WN 331 | BUF 12:50 | BWI 14:05 | 1h 15m | 16 | 75% | 0.0% | 33 min |
| WN 4734 | BUF 14:50 | BWI 16:05 | 1h 15m | 26 | 77% | 0.0% | 86 min |
| WN 958 | BUF 17:55 | BWI 19:15 | 1h 20m | 42 | 66% | 7.1% | 74 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 | BUF | BWI | 1h 15m | 87% | 1.4% | 1,750 | 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