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6,239 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 93% depart on time. After 4 pm it’s 4 in 5.

Best time to leave 7–8 am 95% arrive on time from SEA
Best single flight DL 3830 SEA 07:15 → GEG 08:36 · 96% on time Avoid AS 454 SEA 11:45 → GEG 13:04 · 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).

7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
SEA
93
92
89
82
79
83
88
77
83
80
81
81
82
81
82
71
80
% 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.
Delta (incl. SkyWest) 2,907 87% 0.8% 66 min
Alaska (incl. SkyWest, Horizon) 3,332 82% 1.2% 45 min

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.
DL 3830flown by SkyWest SEA 07:15 GEG 08:36 96%
AS 2358flown by Horizon SEA 07:15 GEG 08:20 93%
DL 3677flown by SkyWest SEA 19:56 GEG 21:12 90%
DL 3824flown by SkyWest SEA 09:20 GEG 10:34 89%
DL 4145flown by SkyWest SEA 14:19 GEG 15:40 88%
· · ·
DL 4068flown by SkyWest SEA 10:55 GEG 12:11 84%
AS 448 SEA 20:05 GEG 21:18 83%
AS 454 SEA 11:45 GEG 13:04 82%
All 28 flights on this route →

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.
Delta SEA GEG 1h 15m 87% 0.8% 2,907 Flying now
Alaska SEA GEG 1h 06m 82% 1.2% 3,332 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