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7,463 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 92% depart on time. After 4 pm it’s 82%.

Best time to leave 6–7 am 92% arrive on time from LAX
Best single flight DL 1714 LAX 09:40 → SEA 12:30 · 93% on time Avoid AS 1305 LAX 12:47 → SEA 15:33 · 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).

6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
LAX
95
92
92
87
88
80
77
78
83
79
86
83
79
80
86
78
% 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 LAX 9–10 pm: 2Close ×
AS 495 LAX 21:12 SEA 23:59 2h 47m 25 92% 0.0% 30 min
DL 2616 LAX 21:15 SEA 00:06 2h 50m 65 77% 0.0% 72 min

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 (incl. SkyWest) 942 89% 0.6% 51 min
Delta 2,225 87% 0.7% 74 min
Alaska (incl. SkyWest, Horizon) 3,304 86% 0.9% 52 min
Frontier 295 82% 3.4% 79 min
American (incl. SkyWest) 697 79% 0.6% 90 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 1714 LAX 09:40 SEA 12:30 93%
DL 2980 LAX 07:10 SEA 10:03 92%
AS 698 LAX 15:59 SEA 18:56 91%
DL 1045 LAX 11:59 SEA 14:54 89%
AS 614 LAX 20:09 SEA 22:58 88%
· · ·
F9 1177 LAX 15:15 SEA 18:26 82%
DL 1551 LAX 19:17 SEA 22:05 81%
AS 1305 LAX 12:47 SEA 15:33 76%
All 32 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 LAX SEA 3h 06m 89% 0.6% 942 Flying now
Delta LAX SEA 2h 53m 87% 0.7% 2,225 Flying now
Alaska LAX SEA 2h 55m 86% 0.9% 3,304 Flying now
Frontier LAX SEA 3h 01m 82% 3.4% 295 Flying now
American LAX SEA 2h 58m 79% 0.6% 697 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