5,621 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 72%.

Best time to leave 5–6 am 98% arrive on time from SEA

Best single flight DL 2922 SEA 07:25 → LAS 09:59 · 92% on time Avoid AS 730 SEA 17:40 → LAS 20:18 · 73% 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).

SEA

% 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	84%	1.0%	57 min
Alaska (incl. SkyWest)	2,631	80%	0.8%	48 min
Southwest	976	71%	0.5%	49 min
Frontier	260	69%	1.2%	131 min
Spirit	12	–	0.0%	50 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 2922	SEA 07:25	LAS 09:59	92%
AS 704	SEA 20:15	LAS 22:55	89%
AS 612	SEA 07:48	LAS 10:29	88%
DL 2905	SEA 09:55	LAS 12:28	85%
AS 658	SEA 13:00	LAS 15:35	82%
· · ·
AS 600	SEA 15:18	LAS 17:53	77%
AS 478	SEA 18:21	LAS 21:00	75%
AS 730	SEA 17:40	LAS 20:18	73%

All 24 flights in the current schedule

Every flight that flew in the Jun 6 – Jul 31, 2026 schedule, with its record over Aug 2025 – Jul 2026. Times are local. Click a column to sort.


WN 1629	SEA 06:30	LAS 09:00	2h 30m	16	94%	0.0%	126 min
DL 2922	SEA 07:25	LAS 09:59	2h 34m	365	92%	1.1%	63 min
WN 2175	SEA 07:30	LAS 10:05	2h 35m	33	85%	0.0%	34 min
AS 612	SEA 07:48	LAS 10:29	2h 41m	235	88%	0.4%	51 min
DL 2905	SEA 09:55	LAS 12:28	2h 33m	364	85%	0.5%	58 min
AS 610	SEA 10:31	LAS 13:10	2h 39m	28	93%	0.0%	36 min
DL 2880	SEA 11:05	LAS 13:39	2h 34m	359	82%	1.7%	59 min
AS 738	SEA 11:31	LAS 14:16	2h 45m	324	80%	0.3%	48 min
WN 3620	SEA 12:45	LAS 15:20	2h 35m	26	65%	0.0%	36 min
WN 2350	SEA 12:45	LAS 15:20	2h 35m	16	81%	0.0%	35 min
AS 658	SEA 13:00	LAS 15:35	2h 35m	266	82%	0.4%	42 min
F9 4204	SEA 14:20	LAS 16:57	2h 37m	58	70%	1.7%	50 min
AS 600	SEA 15:18	LAS 17:53	2h 35m	228	77%	0.4%	52 min
AS 1456	SEA 16:19	LAS 18:54	2h 35m	45	67%	0.0%	43 min
DL 2955	SEA 16:20	LAS 18:57	2h 37m	177	78%	1.1%	42 min
AS 551	SEA 16:20	LAS 18:57	2h 37m	260	81%	1.2%	51 min
WN 2625	SEA 16:35	LAS 19:15	2h 40m	16	44%	0.0%	37 min
WN 2267	SEA 17:35	LAS 20:15	2h 40m	26	27%	0.0%	61 min
AS 730	SEA 17:40	LAS 20:18	2h 37m	191	73%	1.0%	50 min
AS 478	SEA 18:21	LAS 21:00	2h 39m	327	75%	0.6%	46 min
F9 2408	SEA 20:13	LAS 22:54	2h 39m	103	68%	1.0%	107 min
AS 704	SEA 20:15	LAS 22:55	2h 40m	240	89%	2.1%	66 min
DL 2949	SEA 20:20	LAS 22:59	2h 39m	358	81%	0.8%	51 min
AS 636	SEA 21:23	LAS 23:59	2h 36m	121	69%	0.8%	40 min

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	SEA	LAS	2h 34m	84%	1.0%	1,742	Flying now
Alaska	SEA	LAS	2h 37m	80%	0.8%	2,631	Flying now
Southwest	SEA	LAS	2h 30m	71%	0.5%	976	Flying now
Frontier	SEA	LAS	2h 38m	69%	1.2%	260	Flying now
Spirit	SEA	LAS	2h 28m	67%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