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3,473 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 94% depart on time. After 4 pm it’s 7 in 10.

Best time to leave 5–6 am 96% arrive on time from SFO
Best single flight DL 1331 SFO 05:50 → SLC 08:42 · 96% on time Avoid DL 902 SFO 13:20 → SLC 16:15 · 71% 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
SFO
96
92
91
74
80
76
64
78
81
63
68
80
76
60
% 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.
Delta (incl. SkyWest) 1,715 78% 1.0% 77 min
United (incl. SkyWest) 1,484 77% 0.9% 64 min
Frontier 195 71% 2.1% 82 min
Alaska (incl. SkyWest, Horizon) 79 – 1.3% 76 min

Dimmed: fewer than 150 flights in the year, too few to rank.

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 1331 SFO 05:50 SLC 08:42 96%
DL 920 SFO 09:55 SLC 12:44 78%
DL 1088 SFO 17:07 SLC 20:02 71%
DL 902 SFO 13:20 SLC 16:15 71%
All 14 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 SFO SLC 1h 56m 78% 1.0% 1,715 Flying now
United SFO SLC 1h 59m 77% 0.9% 1,484 Flying now
Frontier SFO SLC 2h 09m 71% 2.1% 195 Flying now
Alaska SFO SLC 1h 55m 78% 1.3% 79 Not 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