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1,131 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 92% depart on time. After 4 pm it’s 77%.

Best time to leave 7–8 am 95% arrive on time from SEA
Best single flight AS 418 SEA 07:48 → MCI 13:21 · 89% on time Avoid AS 564 SEA 18:27 → MCI 23:59 · 77% 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
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13
14
15
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18
SEA
93
91
80
80
75
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.

Airlines on this route

Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.
Alaska 749 84% 0.5% 47 min
Delta 364 77% 1.6% 79 min
Southwest 18 – 0.0% 66 min

Dimmed: fewer than 150 flights in the year, too few to rank.

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 418 SEA 07:48 MCI 13:21 89%
DL 2256 SEA 17:30 MCI 23:06 77%
AS 564 SEA 18:27 MCI 23:59 77%

All 6 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 418 SEA 07:48 MCI 13:21 3h 33m 309 89% 0.3% 57 min
AS 501 SEA 08:15 MCI 13:57 3h 42m 28 100% 0.0% –
AS 497 SEA 13:30 MCI 19:01 3h 31m 80 81% 0.0% 44 min
DL 2256 SEA 17:30 MCI 23:06 3h 36m 364 77% 1.6% 79 min
AS 484 SEA 18:10 MCI 23:49 3h 39m 24 75% 0.0% 28 min
AS 564 SEA 18:27 MCI 23:59 3h 32m 225 77% 1.3% 43 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 MCI 3h 33m 84% 0.5% 749 Flying now
Delta SEA MCI 3h 36m 77% 1.6% 364 Flying now
Southwest SEA MCI – 39%few flights 0.0% 18 Not 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