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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
Spokane flights leaving SEA 9–10 pm: 2Close ×
AS 2363flown by Horizon SEA 21:30 GEG 22:36 1h 06m 28 82% 0.0% 48 min
AS 2071flown by Horizon SEA 21:30 GEG 22:36 1h 06m 37 70% 0.0% 58 min

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