Showing Southwest only (incl. its regional partners)All airlines ×

1,160 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 9 in 10 depart on time. After 4 pm it’s 77%.

Best time to leave 6–7 am 91% arrive on time from SAN

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).

SAN

% of this route’s flights leaving within 15 min (small number: flights in the Jun 6 – Jul 31, 2026 schedule): 85+75–8465–7455–64under 55

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 5 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 3896	SAN 06:40	BWI 14:50	5h 10m	57	86%	0.0%	46 min
WN 3390	SAN 11:15	BWI 19:20	5h 05m	26	74%	3.8%	43 min
WN 999	SAN 11:45	BWI 19:50	5h 05m	16	60%	6.2%	25 min
WN 4148	SAN 14:10	BWI 22:10	5h 00m	33	21%	0.0%	48 min
WN 3486	SAN 21:40	BWI 05:35	4h 55m	58	65%	0.0%	36 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	SAN	BWI	5h 00m	79%	1.6%	1,160	Flying now

Flying on a particular day? Pick a date above and the same ranking uses our forecast odds for each flight that day: Tomorrow.

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