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Showing United only (incl. its regional partners)All airlines ×
1,294 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

No clear winner: United’s SFO → ACV flights land within a few points of 3 in 4 on time whatever the hour.

Best time to leave 9–10 am 82% arrive on time from SFO
Best single flight UA 4695 SFO 22:35 → ACV 23:59 · 74% on time Avoid UA 4708 SFO 10:15 → ACV 11:42 · 71% 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).

9
10
11
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SFO
81
59
79
71
69
74
23
% 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 4695flown by SkyWest SFO 22:35 ACV 23:59 74%
UA 5480flown by SkyWest SFO 16:31 ACV 18:03 73%
UA 4708flown by SkyWest SFO 10:15 ACV 11:42 71%

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 4708flown by SkyWest SFO 10:15 ACV 11:42 1h 27m 365 71% 0.8% 71 min
UA 5480flown by SkyWest SFO 16:31 ACV 18:03 1h 32m 272 73% 4.0% 69 min
UA 5626flown by SkyWest SFO 21:22 ACV 22:51 1h 29m 63 78% 6.3% 244 min
UA 4695flown by SkyWest SFO 22:35 ACV 23:59 1h 24m 337 74% 2.7% 130 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 SFO ACV 1h 27m 74% 2.7% 1,294 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