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

No clear winner: Alaska’s SEA → CMH flights land within a few points of 82% on time whatever the hour.

Best time to leave 10–11 pm 91% arrive on time from SEA
Best single flight AS 450 SEA 09:41 → CMH 17:09 · 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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SEA
77
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79
% 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 450 SEA 09:41 CMH 17:09 82%

All 3 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 450 SEA 09:41 CMH 17:09 4h 28m 344 82% 0.6% 47 min
AS 1409 SEA 22:08 CMH 05:40 4h 32m 20 95% 0.0% 20 min
AS 280 SEA 22:12 CMH 05:40 4h 28m 51 90% 0.0% 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 SEA CMH 4h 30m 82% 0.4% 460 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