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Sun, Oct 4 has passed, so this is the 12-month record.

4,191 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 82%.

Best time to leave 7–8 pm 96% arrive on time from SLC
Best single flight DL 1087 SLC 07:49 → LAX 08:50 · 92% on time Avoid DL 1142 SLC 20:40 → LAX 21:45 · 76% 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
SLC
93
94
91
89
88
84
75
85
79
90
84
65
91
73
88
85
% 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.
American (incl. SkyWest) 201 93% 0.0% 85 min
United (incl. SkyWest) 668 90% 0.0% 71 min
Frontier 470 90% 1.3% 79 min
Delta 2,455 86% 0.4% 52 min
Southwest 374 83% 0.3% 46 min
Spirit 23 – 4.3% 28 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 1087 SLC 07:49 LAX 08:50 92%
DL 1095 SLC 09:40 LAX 10:42 92%
UA 5484flown by SkyWest SLC 16:42 LAX 17:53 92%
F9 1267 SLC 10:15 LAX 11:23 91%
UA 5408flown by SkyWest SLC 07:45 LAX 09:15 90%
· · ·
DL 1197 SLC 22:45 LAX 23:42 84%
DL 841 SLC 15:40 LAX 16:36 81%
DL 1142 SLC 20:40 LAX 21:45 76%
All 15 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 SLC LAX 2h 12m 90% 0.0% 668 Flying now
Frontier SLC LAX 2h 02m 90% 1.3% 470 Flying now
Delta SLC LAX 2h 01m 86% 0.4% 2,455 Flying now
Southwest SLC LAX 2h 00m 83% 0.3% 374 Flying now
American SLC LAX 2h 16m 93% 0.0% 201 Not flying now
Spirit SLC LAX 2h 04m 91%few flights 4.3% 23 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