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5,465 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 82% depart on time. After 4 pm it’s 56%.

Best time to leave 5–6 am 96% arrive on time from DEN
Best single flight UA 2367 DEN 05:15 → SFO 06:53 · 96% on time Avoid UA 1506 DEN 09:43 → SFO 11:25 · 48% 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).

5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
DEN
97
96
73
70
55
80
73
56
77
68
73
56
69
38
51
46
61
62
% 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.

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 3,412 71% 0.2% 64 min
Frontier 638 67% 0.6% 57 min
Southwest 1,415 52% 0.4% 60 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 2367 DEN 05:15 SFO 06:53 96%
UA 1812 DEN 13:25 SFO 15:09 76%
UA 2633 DEN 15:47 SFO 17:30 73%
UA 1561 DEN 11:21 SFO 13:04 72%
UA 2391 DEN 07:40 SFO 09:18 71%
· · ·
F9 1093 DEN 18:58 SFO 20:54 62%
UA 2123 DEN 21:10 SFO 22:56 60%
UA 1506 DEN 09:43 SFO 11:25 48%
All 21 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 DEN SFO 2h 44m 71% 0.2% 3,412 Flying now
Frontier DEN SFO 2h 56m 67% 0.6% 638 Flying now
Southwest DEN SFO 2h 40m 52% 0.4% 1,415 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