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5,619 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 9 in 10 depart on time. After 4 pm it’s 2 in 3.

Best time to leave 6–7 am 96% arrive on time from LAS
Best single flight AS 701 LAS 06:02 → SEA 08:45 · 96% on time Avoid AS 676 LAS 12:16 → SEA 15:00 · 77% 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
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15
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LAS
94
86
86
85
82
86
82
81
75
73
62
74
71
70
76
60
37
% 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 1,742 88% 1.0% 92 min
Alaska (incl. SkyWest) 2,628 84% 1.1% 68 min
Frontier 260 82% 1.2% 52 min
Southwest 977 72% 0.2% 45 min
Spirit 12 – 0.0% 55 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.
AS 701 LAS 06:02 SEA 08:45 96%
DL 2844 LAS 06:05 SEA 08:45 96%
DL 2922 LAS 10:59 SEA 13:51 92%
AS 629 LAS 10:28 SEA 13:14 89%
DL 2905 LAS 13:35 SEA 16:23 89%
· · ·
AS 552 LAS 17:48 SEA 20:40 83%
F9 2407 LAS 07:45 SEA 10:36 80%
AS 676 LAS 12:16 SEA 15:00 77%
All 24 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 LAS SEA 2h 50m 88% 1.0% 1,742 Flying now
Alaska LAS SEA 2h 49m 84% 1.1% 2,628 Flying now
Frontier LAS SEA 2h 56m 82% 1.2% 260 Flying now
Southwest LAS SEA 2h 50m 72% 0.2% 977 Flying now
Spirit LAS SEA 2h 45m 75%few flights 0.0% 12 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