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6,122 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 57%.

Best time to leave 6–7 am 97% 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
22
LAS
97
74
61
71
68
77
55
71
51
73
71
62
58
57
49
51
40
% 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
San Francisco flights leaving LAS 5–6 pm: 3Close ×
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
F9 3801 LAS 17:51 SFO 19:44 1h 53m 267 65% 2.2% 75 min

Airlines on this route

Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.
United 2,793 66% 0.4% 63 min
Alaska (incl. SkyWest, Horizon) 1,124 66% 0.8% 52 min
Frontier 893 64% 1.7% 71 min
Southwest 1,312 47% 0.6% 55 min

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%
F9 3019 LAS 07:00 SFO 08:49 76%
AS 613 LAS 22:05 SFO 23:42 76%
UA 2047 LAS 17:13 SFO 18:55 71%
UA 574 LAS 11:30 SFO 13:12 69%
· · ·
UA 1799 LAS 13:34 SFO 15:16 57%
F9 4401 LAS 14:34 SFO 16:36 52%
UA 1267 LAS 19:52 SFO 21:34 40%
All 22 flights on this route →

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
Alaska LAS SFO 1h 43m 66% 0.8% 1,124 Flying now
Frontier LAS SFO 1h 53m 64% 1.7% 893 Flying now
Southwest LAS SFO 1h 38m 47% 0.6% 1,312 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