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Showing Alaska only (incl. its regional partners)All airlines ×
1,791 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 6–7 am 86% arrive on time from SEA
Best single flight AS 328 SEA 00:17 → ORD 06:20 · 83% on time Avoid AS 429 SEA 10:29 → ORD 16:44 · 56% 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).

5
6
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SEA
90
86
65
53
73
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86
71
74
% 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 328 SEA 00:17 ORD 06:20 83%
AS 538 SEA 17:48 ORD 23:59 80%
AS 265 SEA 08:34 ORD 14:46 77%
AS 410 SEA 13:10 ORD 19:21 72%
AS 429 SEA 10:29 ORD 16:44 56%

All 9 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 328 SEA 00:17 ORD 06:20 4h 03m 232 83% 0.9% 47 min
AS 578 SEA 06:00 ORD 12:03 4h 03m 52 90% 0.0% 63 min
AS 265 SEA 08:34 ORD 14:46 4h 12m 260 77% 1.2% 48 min
AS 429 SEA 10:29 ORD 16:44 4h 15m 227 56% 3.1% 60 min
AS 584 SEA 10:31 ORD 16:48 4h 17m 28 54% 0.0% 54 min
AS 346 SEA 11:29 ORD 17:38 4h 09m 35 28% 5.7% 54 min
AS 409 SEA 12:45 ORD 19:03 4h 18m 28 71% 0.0% 65 min
AS 410 SEA 13:10 ORD 19:21 4h 11m 353 72% 1.1% 66 min
AS 538 SEA 17:48 ORD 23:59 4h 11m 350 80% 0.9% 69 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 ORD 4h 09m 74% 1.3% 1,791 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