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Showing Alaska only (incl. its regional partners)All airlines ×
244 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

No clear winner: Alaska’s SIT → SEA flights land within a few points of 3 in 4 on time whatever the hour.

Best time to leave 7–8 am 80% arrive on time from SIT

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).

7
8
9
10
11
12
13
14
SIT
90
63
73
% 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.

No Alaska flight on this route ran 150+ times in the year.

All 4 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 651 SIT 07:00 SEA 10:24 2h 24m 52 85% 0.0% 79 min
AS 92 SIT 07:00 SEA 10:23 2h 23m 28 96% 3.6% 17 min
AS 303 SIT 13:50 SEA 17:20 2h 30m 28 89% 0.0% 26 min
AS 652 SIT 14:08 SEA 17:29 2h 21m 51 80% 2.0% 97 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 SIT SEA 2h 24m 75% 0.8% 244 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