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4,559 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 4 in 5.

Best time to leave 5–6 am 97% arrive on time from SMF
Best single flight DL 4125 SMF 13:00 → SEA 15:16 · 93% on time Avoid AS 1365 SMF 12:44 → SEA 14:48 · 86% 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
SMF
95
95
95
87
84
93
87
83
84
74
51
85
78
87
79
75
73
% 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
Seattle flights leaving SMF 6–7 am: 1Close ×
AS 1409 SMF 06:13 SEA 08:16 2h 03m 51 100% 0.0% –

Airlines on this route

Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.
Delta (incl. SkyWest) 1,634 89% 0.2% 61 min
Alaska (incl. SkyWest, Horizon) 1,786 81% 0.7% 48 min
Southwest 1,139 79% 0.2% 43 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.
DL 4125flown by SkyWest SMF 13:00 SEA 15:16 93%
DL 3881flown by SkyWest SMF 11:34 SEA 13:45 90%
DL 4075flown by SkyWest SMF 07:52 SEA 10:05 89%
AS 1365 SMF 12:44 SEA 14:48 86%
All 23 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.
Delta SMF SEA 2h 14m 89% 0.2% 1,634 Flying now
Alaska SMF SEA 2h 05m 81% 0.7% 1,786 Flying now
Southwest SMF SEA 2h 00m 79% 0.2% 1,139 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