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3,850 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 93% depart on time. After 4 pm it’s 3 in 5.

Best time to leave 8–9 am 92% arrive on time from DEN
Best single flight UA 2149 DEN 08:00 → SMF 09:35 · 94% on time Avoid UA 2132 DEN 19:37 → SMF 21:12 · 74% 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).

7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
DEN
92
93
81
80
85
64
76
46
67
76
30
67
50
50
48
% 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.
Frontier 183 82% 0.0% 66 min
United (incl. SkyWest) 1,794 82% 0.3% 61 min
Southwest 1,873 67% 0.3% 53 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 2149 DEN 08:00 SMF 09:35 94%
UA 1208 DEN 16:03 SMF 17:41 82%
UA 1415 DEN 11:30 SMF 13:05 82%
F9 3665 DEN 09:01 SMF 10:40 82%
UA 2132 DEN 19:37 SMF 21:12 74%
All 16 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.
Frontier DEN SMF 2h 39m 82% 0.0% 183 Flying now
United DEN SMF 2h 35m 82% 0.3% 1,794 Flying now
Southwest DEN SMF 2h 35m 67% 0.3% 1,873 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