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Showing Southwest only (incl. its regional partners)All airlines ×
1,869 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 93% depart on time. After 4 pm it’s 7 in 10.

Best time to leave 7–8 am 98% 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
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% 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 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 3794 SMF 06:20 LGB 07:50 1h 30m 45 80% 0.0% 58 min
WN 1183 SMF 07:20 LGB 08:50 1h 30m 16 100% 0.0% –
WN 3795 SMF 09:55 LGB 11:25 1h 30m 41 83% 0.0% 54 min
WN 558 SMF 11:05 LGB 12:35 1h 30m 16 94% 0.0% 33 min
WN 2414 SMF 13:10 LGB 14:40 1h 30m 26 96% 0.0% 37 min
WN 3650 SMF 14:15 LGB 15:40 1h 25m 16 94% 0.0% 145 min
WN 2485 SMF 16:15 LGB 17:40 1h 25m 34 91% 0.0% 41 min
WN 4934 SMF 19:35 LGB 21:02 1h 28m 34 82% 0.0% 31 min
WN 744 SMF 19:45 LGB 21:10 1h 25m 16 56% 0.0% 32 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 LGB 1h 25m 86% 0.3% 1,869 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