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

No clear winner: Alaska’s SEA → BIL flights land within a few points of 85% on time whatever the hour.

Best time to leave 9–10 am 98% arrive on time from SEA
Best single flight AS 2457 SEA 20:59 → BIL 23:51 · 92% on time Avoid AS 2353 SEA 15:49 → BIL 18:42 · 83% 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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% 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 2457flown by Horizon SEA 20:59 BIL 23:51 92%
AS 2353flown by Horizon SEA 15:49 BIL 18:42 83%

All 7 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 2337flown by Horizon SEA 08:08 BIL 11:05 1h 57m 16 88% 0.0% 37 min
AS 2054flown by Horizon SEA 10:09 BIL 13:05 1h 56m 52 82% 1.9% 60 min
AS 2084flown by Horizon SEA 10:22 BIL 13:21 1h 59m 38 79% 0.0% 39 min
AS 2295flown by Horizon SEA 15:47 BIL 18:41 1h 54m 28 75% 0.0% 60 min
AS 2353flown by Horizon SEA 15:49 BIL 18:42 1h 53m 219 83% 0.9% 40 min
AS 2367flown by Horizon SEA 20:39 BIL 23:33 1h 54m 27 93% 0.0% 78 min
AS 2457flown by Horizon SEA 20:59 BIL 23:51 1h 52m 312 92% 1.0% 42 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 BIL 1h 54m 85% 0.8% 918 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