Showing Alaska only (incl. its regional partners)All airlines ×

1,828 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 78%.

Best time to leave 7–8 am 94% arrive on time from SEA

Best single flight AS 430 SEA 07:05 → SLC 10:15 · 95% on time Avoid AS 733 SEA 11:51 → SLC 15:04 · 69% 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.

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 430	SEA 07:05	SLC 10:15	95%
AS 3298flown by SkyWest	SEA 19:07	SLC 22:14	79%
AS 733	SEA 11:51	SLC 15:04	69%

All 11 Alaska 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.


AS 430	SEA 07:05	SLC 10:15	2h 10m	220	95%	1.8%	34 min
AS 292	SEA 07:18	SLC 10:27	2h 09m	52	88%	0.0%	68 min
AS 360	SEA 08:48	SLC 11:55	2h 07m	52	88%	0.0%	41 min
AS 1477	SEA 11:32	SLC 14:48	2h 16m	28	89%	0.0%	27 min
AS 733	SEA 11:51	SLC 15:04	2h 13m	271	69%	0.7%	43 min
AS 368	SEA 14:45	SLC 17:48	2h 03m	38	66%	0.0%	55 min
AS 619	SEA 15:55	SLC 19:01	2h 06m	28	79%	0.0%	47 min
AS 373	SEA 16:47	SLC 19:50	2h 03m	51	80%	0.0%	42 min
AS 3298flown by SkyWest	SEA 19:07	SLC 22:14	2h 07m	294	79%	0.0%	47 min
AS 3134flown by SkyWest	SEA 19:50	SLC 22:57	2h 07m	28	79%	0.0%	28 min
AS 1459	SEA 20:33	SLC 23:36	2h 03m	18	44%	0.0%	69 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.


Alaska	SEA	SLC	2h 07m	81%	1.1%	1,828	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