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

No clear winner: United’s LAX → SMF flights land within a few points of 9 in 10 on time whatever the hour.

Best time to leave 4–5 pm 93% arrive on time from LAX
Best single flight UA 5537 LAX 09:20 → SMF 10:56 · 92% on time Avoid UA 5430 LAX 21:20 → SMF 22:56 · 87% on time

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).

8
9
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LAX
92
96
91
74
91
84
97
% 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.
UA 5537flown by SkyWest LAX 09:20 SMF 10:56 92%
UA 5430flown by SkyWest LAX 21:20 SMF 22:56 87%

All 4 United 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.
UA 5372flown by SkyWest LAX 09:20 SMF 10:56 1h 36m 37 89% 0.0% 28 min
UA 5537flown by SkyWest LAX 09:20 SMF 10:56 1h 36m 171 92% 1.8% 47 min
UA 5858flown by SkyWest LAX 16:30 SMF 18:06 1h 36m 128 92% 0.0% 51 min
UA 5430flown by SkyWest LAX 21:20 SMF 22:56 1h 36m 194 87% 0.0% 162 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.
United LAX SMF 1h 36m 89% 0.4% 826 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