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Showing Alaska only (incl. its regional partners)All airlines ×
1,057 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

No clear winner: Alaska’s KOA → SEA flights land within a few points of 86% on time whatever the hour.

Best time to leave 9–10 am 92% arrive on time from KOA
Best single flight AS 259 KOA 21:19 → SEA 06:12 · 91% on time Avoid AS 205 KOA 13:18 → SEA 22:11 · 82% 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).

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KOA
94
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89
% 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 259 KOA 21:19 SEA 06:12 91%
AS 205 KOA 13:18 SEA 22:11 82%

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 228 KOA 08:00 SEA 16:58 5h 58m 28 93% 0.0% 26 min
AS 513 KOA 08:03 SEA 16:55 5h 52m 52 94% 1.9% 25 min
AS 205 KOA 13:18 SEA 22:11 5h 53m 235 82% 0.0% 42 min
AS 259 KOA 21:19 SEA 06:12 5h 53m 214 91% 1.4% 37 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 KOA SEA 5h 55m 86% 1.9% 1,057 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