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6,240 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 94% depart on time. After 4 pm it’s 82%.

Best time to leave 6–7 am 95% arrive on time from GEG
Best single flight DL 4137 GEG 06:08 → SEA 07:36 · 95% on time Avoid DL 3830 GEG 09:20 → SEA 10:55 · 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).

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GEG
96
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93
89
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81
79
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88
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88
76
79
82
% 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) 2,908 90% 0.7% 76 min
Alaska (incl. SkyWest, Horizon) 3,332 83% 1.5% 50 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 4137flown by SkyWest GEG 06:08 SEA 07:36 95%
DL 3790flown by SkyWest GEG 07:00 SEA 08:24 92%
AS 360 GEG 06:00 SEA 07:15 91%
DL 3824flown by SkyWest GEG 11:15 SEA 12:43 90%
DL 3832flown by SkyWest GEG 19:59 SEA 21:22 89%
· · ·
DL 3754flown by SkyWest GEG 13:00 SEA 14:27 84%
AS 455 GEG 13:59 SEA 15:15 83%
DL 3830flown by SkyWest GEG 09:20 SEA 10:55 82%
All 30 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 GEG SEA 1h 24m 90% 0.7% 2,908 Flying now
Alaska GEG SEA 1h 15m 83% 1.5% 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