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Showing United only (incl. its regional partners)All airlines ×
1,292 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 4 in 5 depart on time. After 4 pm it’s 68%.

Best time to leave 6–7 am 86% arrive on time from ACV
Best single flight UA 5313 ACV 06:00 → SFO 07:09 · 74% on time Avoid UA 4655 ACV 14:05 → SFO 15:22 · 57% 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).

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ACV
91
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85
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64
% 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 5313flown by SkyWest ACV 06:00 SFO 07:09 74%
UA 4655flown by SkyWest ACV 14:05 SFO 15:22 57%

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 5313flown by SkyWest ACV 06:00 SFO 07:09 1h 09m 364 74% 1.9% 117 min
UA 4632flown by SkyWest ACV 07:40 SFO 08:56 1h 16m 71 17% 7.0% 74 min
UA 4655flown by SkyWest ACV 14:05 SFO 15:22 1h 17m 362 57% 1.4% 74 min
UA 5305flown by SkyWest ACV 18:44 SFO 20:07 1h 23m 105 33% 6.7% 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.
United ACV SFO 1h 19m 61% 2.9% 1,292 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