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6,559 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

No clear winner: airlines and hours on this route all land within a few points of 85% on time.

Best time to leave 5–6 am 95% arrive on time from PDX
Best single flight DL 4008 PDX 05:30 → SEA 06:41 · 95% on time Avoid AS 3431 PDX 10:35 → SEA 11:43 · 81% 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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9
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PDX
95
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86
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78
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81
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84
% 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) 2,651 89% 0.3% 59 min
Alaska (incl. SkyWest, Horizon) 3,908 83% 1.0% 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 4008flown by SkyWest PDX 05:30 SEA 06:41 95%
AS 499 PDX 06:19 SEA 07:17 93%
DL 3818flown by SkyWest PDX 11:20 SEA 12:36 91%
DL 3802flown by SkyWest PDX 12:23 SEA 13:34 87%
DL 3918flown by SkyWest PDX 17:50 SEA 19:05 86%
· · ·
AS 2190flown by Horizon PDX 21:35 SEA 22:34 86%
DL 3953flown by SkyWest PDX 09:30 SEA 10:55 85%
AS 3431flown by SkyWest PDX 10:35 SEA 11:43 81%

All 31 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 2431flown by Horizon PDX 05:00 SEA 05:53 53m 52 94% 1.9% 54 min
DL 4008flown by SkyWest PDX 05:30 SEA 06:41 1h 11m 208 95% 0.0% 159 min
AS 2353flown by Horizon PDX 06:00 SEA 06:53 53m 28 89% 0.0% 50 min
AS 499 PDX 06:19 SEA 07:17 58m 291 93% 1.0% 39 min
DL 3965flown by SkyWest PDX 07:05 SEA 08:18 1h 13m 31 94% 0.0% 28 min
AS 2420flown by Horizon PDX 07:19 SEA 08:20 1h 01m 52 98% 1.9% 26 min
DL 4471flown by SkyWest PDX 07:20 SEA 08:34 1h 14m 55 93% 0.0% 89 min
AS 2108flown by Horizon PDX 08:19 SEA 09:14 55m 52 92% 1.9% 154 min
AS 2081flown by Horizon PDX 08:44 SEA 09:40 56m 103 92% 0.0% 61 min
AS 427 PDX 09:19 SEA 10:21 1h 02m 51 48% 2.0% 63 min
DL 3953flown by SkyWest PDX 09:30 SEA 10:55 1h 25m 365 85% 0.5% 48 min
AS 2405flown by Horizon PDX 09:44 SEA 10:42 58m 28 54% 0.0% 40 min
AS 3431flown by SkyWest PDX 10:35 SEA 11:43 1h 08m 164 81% 0.0% 60 min
AS 2311flown by Horizon PDX 10:45 SEA 11:59 1h 14m 24 100% 0.0% –
DL 3818flown by SkyWest PDX 11:20 SEA 12:36 1h 16m 318 91% 0.3% 64 min
DL 4023flown by SkyWest PDX 11:20 SEA 12:29 1h 09m 31 87% 0.0% 80 min
AS 3078flown by SkyWest PDX 12:03 SEA 13:03 1h 00m 52 86% 1.9% 79 min
AS 3038flown by SkyWest PDX 12:13 SEA 13:14 1h 01m 54 93% 0.0% 163 min
DL 3802flown by SkyWest PDX 12:23 SEA 13:34 1h 11m 349 87% 0.9% 59 min
AS 2205flown by Horizon PDX 13:48 SEA 14:43 55m 52 71% 0.0% 24 min
AS 3048flown by SkyWest PDX 14:30 SEA 15:36 1h 06m 69 81% 0.0% 76 min
DL 4062flown by SkyWest PDX 15:26 SEA 16:40 1h 15m 110 89% 0.0% 51 min
AS 3408flown by SkyWest PDX 15:30 SEA 16:30 1h 00m 91 81% 2.2% 58 min
AS 430 PDX 17:30 SEA 18:33 1h 03m 52 77% 0.0% 40 min
AS 1391 PDX 17:46 SEA 18:54 1h 08m 28 75% 0.0% 29 min
DL 3918flown by SkyWest PDX 17:50 SEA 19:05 1h 15m 324 86% 0.3% 48 min
AS 3121flown by SkyWest PDX 19:25 SEA 20:26 1h 01m 27 78% 0.0% 48 min
AS 2313flown by Horizon PDX 19:38 SEA 20:33 55m 38 55% 0.0% 56 min
DL 3923flown by SkyWest PDX 20:44 SEA 21:56 1h 12m 43 79% 0.0% 49 min
AS 2421flown by Horizon PDX 21:30 SEA 22:27 57m 51 90% 0.0% 53 min
AS 2190flown by Horizon PDX 21:35 SEA 22:34 59m 194 86% 0.5% 29 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.
Delta PDX SEA 1h 11m 89% 0.3% 2,651 Flying now
Alaska PDX SEA 1h 03m 83% 1.0% 3,908 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