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Showing United only (incl. its regional partners)All airlines ×
2,793 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 9 in 10 depart on time. After 4 pm it’s 63%.

Best time to leave 6–7 am 98% arrive on time from LAS
Best single flight UA 643 LAS 06:00 → SFO 07:35 · 98% on time Avoid UA 1267 LAS 19:52 → SFO 21:34 · 40% 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).

6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
LAS
98
84
86
76
76
72
55
81
70
62
68
61
35
% 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 643 LAS 06:00 SFO 07:35 98%
UA 2047 LAS 17:13 SFO 18:55 71%
UA 574 LAS 11:30 SFO 13:12 69%
UA 1603 LAS 18:20 SFO 20:02 66%
UA 2356 LAS 07:15 SFO 08:52 63%
· · ·
UA 1799 LAS 13:34 SFO 15:16 57%
UA 1267 LAS 19:52 SFO 21:34 40%

All 10 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 643 LAS 06:00 SFO 07:35 1h 35m 199 98% 0.5% 164 min
UA 2356 LAS 07:15 SFO 08:52 1h 37m 349 63% 0.3% 44 min
UA 574 LAS 11:30 SFO 13:12 1h 42m 364 69% 0.3% 61 min
UA 1799 LAS 13:34 SFO 15:16 1h 42m 270 57% 0.7% 62 min
UA 2478 LAS 14:52 SFO 16:34 1h 42m 72 51% 1.4% 53 min
UA 2047 LAS 17:13 SFO 18:55 1h 42m 326 71% 0.0% 68 min
UA 2841 LAS 17:13 SFO 18:55 1h 42m 37 65% 0.0% 59 min
UA 1603 LAS 18:20 SFO 20:02 1h 42m 198 66% 0.0% 76 min
UA 1267 LAS 19:52 SFO 21:34 1h 42m 256 40% 0.0% 66 min
UA 2615 LAS 21:15 SFO 22:57 1h 42m 52 23% 0.0% 72 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 LAS SFO 1h 42m 66% 0.4% 2,793 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