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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
14
15
16
17
18
19
20
21
22
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
Seattle flights leaving LAS 10–11 am: 2Close ×
AS 629 LAS 10:28 SEA 13:14 2h 46m 353 89% 0.6% 106 min
DL 2922 LAS 10:59 SEA 13:51 2h 52m 218 92% 2.8% 61 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.
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