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Showing Southwest only (incl. its regional partners)All airlines ×
3,452 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 barely half.

Best time to leave 5–6 am 99% arrive on time from LAS

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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LAS
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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 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 4589 LAS 06:10 SMF 07:45 1h 35m 58 97% 0.0% 65 min
WN 2359 LAS 07:18 SMF 08:48 1h 30m 50 98% 0.0% 20 min
WN 860 LAS 08:35 SMF 10:05 1h 30m 33 94% 0.0% 21 min
WN 2855 LAS 09:22 SMF 10:58 1h 35m 16 94% 0.0% 18 min
WN 1122 LAS 09:35 SMF 11:10 1h 35m 24 92% 0.0% 28 min
WN 695 LAS 10:25 SMF 12:00 1h 35m 24 79% 0.0% 23 min
WN 4532 LAS 11:25 SMF 13:00 1h 35m 34 88% 0.0% 28 min
WN 4533 LAS 12:35 SMF 14:10 1h 35m 34 71% 0.0% 38 min
WN 1097 LAS 12:40 SMF 14:15 1h 35m 16 75% 0.0% 38 min
WN 1308 LAS 15:50 SMF 17:25 1h 35m 26 58% 0.0% 47 min
WN 1322 LAS 17:45 SMF 19:20 1h 35m 16 50% 0.0% 47 min
WN 4032 LAS 18:30 SMF 20:05 1h 35m 34 36% 2.9% 52 min
WN 978 LAS 19:20 SMF 20:58 1h 38m 26 35% 0.0% 83 min
WN 1651 LAS 19:40 SMF 21:12 1h 32m 16 62% 0.0% 133 min
WN 1435 LAS 20:25 SMF 22:00 1h 35m 15 57% 6.7% 74 min
WN 2362 LAS 21:10 SMF 22:45 1h 30m 49 51% 4.1% 57 min
WN 4226 LAS 22:40 SMF 00:18 1h 38m 26 42% 0.0% 54 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 LAS SMF 1h 40m 78% 0.3% 3,452 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