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2,115 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 95% depart on time. After 4 pm it’s 7 in 10.

Best time to leave 5–6 am 99% arrive on time from SMF

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
SMF
97
96
93
93
84
78
77
75
80
77
65
66
78
66
69
% 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.
Southwest 2,115 85% 0.4% 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.

No flight on this route ran 150+ times in the year.

All 10 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.
WN 4911 SMF 06:00 ONT 07:20 1h 20m 34 97% 2.9% 225 min
WN 3145 SMF 06:20 ONT 07:40 1h 20m 16 100% 0.0% –
WN 3805 SMF 09:10 ONT 10:30 1h 20m 50 92% 0.0% 50 min
WN 1450 SMF 11:35 ONT 12:55 1h 20m 16 94% 0.0% 17 min
WN 300 SMF 12:00 ONT 13:25 1h 25m 34 71% 0.0% 35 min
WN 3807 SMF 14:00 ONT 15:20 1h 20m 42 83% 2.4% 28 min
WN 3808 SMF 16:15 ONT 17:35 1h 20m 26 38% 0.0% 46 min
WN 480 SMF 17:30 ONT 18:55 1h 25m 41 75% 2.4% 37 min
WN 588 SMF 18:50 ONT 20:15 1h 25m 16 75% 0.0% 41 min
WN 4984 SMF 20:55 ONT 22:15 1h 20m 50 66% 0.0% 48 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.
Southwest SMF ONT 1h 20m 85% 0.4% 2,115 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