3,845 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 96% depart on time. After 4 pm it’s 3 in 4.

Best time to leave 5–6 am 96% arrive on time from SMF

Best single flight UA 2285 SMF 08:50 → DEN 12:16 · 98% on time Avoid F9 3666 SMF 11:25 → DEN 14:58 · 82% 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).

SMF

% 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	1,793	90%	0.5%	72 min
Frontier	183	82%	0.0%	83 min
Southwest	1,869	79%	0.2%	47 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 2285	SMF 08:50	DEN 12:16	98%
UA 1889	SMF 05:00	DEN 08:22	97%
UA 566	SMF 16:19	DEN 19:45	87%
UA 1841	SMF 18:37	DEN 21:59	82%
F9 3666	SMF 11:25	DEN 14:58	82%

All 17 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	SMF	DEN	2h 25m	90%	0.5%	1,793	Flying now
Frontier	SMF	DEN	2h 31m	82%	0.0%	183	Flying now
Southwest	SMF	DEN	2h 20m	79%	0.2%	1,869	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