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Showing Southwest only (incl. its regional partners)All airlines ×
3,804 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 92% depart on time. After 4 pm it’s 62%.

Best time to leave 6–7 am 90% arrive on time from SMF

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).

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SMF
94
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92
85
81
68
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66
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58
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54
% 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 17 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 3555 SMF 06:25 SAN 07:55 1h 30m 34 88% 2.9% 26 min
WN 120 SMF 06:32 SAN 08:08 1h 35m 16 88% 0.0% 32 min
WN 1460 SMF 07:30 SAN 09:00 1h 30m 50 76% 2.0% 30 min
WN 3818 SMF 09:30 SAN 11:00 1h 30m 34 65% 0.0% 31 min
WN 1790 SMF 09:35 SAN 11:05 1h 30m 16 88% 0.0% 60 min
WN 1222 SMF 10:45 SAN 12:20 1h 35m 26 62% 0.0% 38 min
WN 4290 SMF 11:40 SAN 13:10 1h 30m 42 50% 0.0% 44 min
WN 2537 SMF 12:40 SAN 14:10 1h 30m 42 57% 0.0% 38 min
WN 3212 SMF 14:20 SAN 15:50 1h 30m 42 57% 0.0% 54 min
WN 4774 SMF 15:15 SAN 16:45 1h 30m 38 53% 0.0% 41 min
WN 1297 SMF 16:30 SAN 18:00 1h 30m 16 56% 0.0% 47 min
WN 4292 SMF 16:40 SAN 18:10 1h 30m 33 58% 0.0% 36 min
WN 3509 SMF 17:30 SAN 19:00 1h 30m 24 33% 0.0% 55 min
WN 1169 SMF 18:00 SAN 19:30 1h 30m 26 23% 0.0% 44 min
WN 4293 SMF 18:45 SAN 20:20 1h 35m 41 44% 0.0% 41 min
WN 382 SMF 19:50 SAN 21:20 1h 30m 16 31% 0.0% 37 min
WN 3822 SMF 20:25 SAN 22:00 1h 32m 42 43% 0.0% 46 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 SMF SAN 1h 30m 71% 0.6% 3,804 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