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Showing Southwest only (incl. its regional partners)All airlines ×
3,444 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 3 in 5.

Best time to leave 5–6 am 96% 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
96
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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 16 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 3784 SMF 05:25 LAS 06:50 1h 25m 49 96% 0.0% 195 min
WN 346 SMF 06:00 LAS 07:25 1h 25m 59 91% 1.7% 34 min
WN 2178 SMF 06:15 LAS 07:40 1h 25m 26 100% 0.0% –
WN 1241 SMF 07:05 LAS 08:30 1h 25m 42 93% 0.0% 109 min
WN 2273 SMF 09:45 LAS 11:10 1h 25m 16 94% 0.0% 227 min
WN 1285 SMF 10:50 LAS 12:20 1h 30m 50 92% 0.0% 28 min
WN 4278 SMF 12:20 LAS 13:50 1h 30m 26 73% 0.0% 32 min
WN 140 SMF 13:05 LAS 14:35 1h 30m 16 75% 0.0% 43 min
WN 2183 SMF 15:05 LAS 16:35 1h 30m 16 62% 0.0% 32 min
WN 2755 SMF 15:30 LAS 17:00 1h 30m 26 76% 3.8% 38 min
WN 2221 SMF 16:35 LAS 18:05 1h 30m 26 35% 0.0% 34 min
WN 3682 SMF 17:35 LAS 19:05 1h 30m 35 66% 0.0% 51 min
WN 4116 SMF 17:50 LAS 19:20 1h 30m 50 56% 0.0% 51 min
WN 3786 SMF 18:50 LAS 20:20 1h 30m 50 75% 4.0% 71 min
WN 1324 SMF 19:50 LAS 21:20 1h 30m 26 58% 0.0% 62 min
WN 3788 SMF 20:45 LAS 22:15 1h 30m 58 65% 0.0% 70 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 LAS 1h 25m 79% 0.4% 3,444 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