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Showing Alaska only (incl. its regional partners)All airlines ×
1,402 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 87% depart on time. After 4 pm it’s 3 in 4.

Best time to leave 1–2 pm 86% arrive on time from JFK
Best single flight AS 23 JFK 13:00 → SEA 16:19 · 78% on time Avoid AS 17 JFK 20:23 → SEA 23:55 · 51% 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).

7
8
9
10
11
12
13
14
15
16
17
18
19
20
JFK
87
88
84
75
74
65
% 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 23 JFK 13:00 SEA 16:19 78%
AS 31 JFK 16:29 SEA 20:09 74%
AS 21 JFK 07:00 SEA 10:16 68%
AS 17 JFK 20:23 SEA 23:55 51%

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 21 JFK 07:00 SEA 10:16 6h 16m 358 68% 3.9% 51 min
AS 23 JFK 13:00 SEA 16:19 6h 19m 356 78% 2.5% 57 min
AS 31 JFK 16:29 SEA 20:09 6h 40m 363 74% 3.9% 74 min
AS 17 JFK 20:23 SEA 23:55 6h 32m 288 51% 1.7% 76 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 JFK SEA 6h 32m 69% 3.2% 1,402 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