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2,689 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 84% on time.

Best time to leave 9–10 am 91% arrive on time from SEA
Best single flight AS 2100 SEA 23:15 → PSC 00:14 · 87% on time Avoid DL 4017 SEA 22:50 → PSC 23:59 · 83% 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).

8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
SEA
89
91
87
76
90
91
86
89
80
87
65
83
88
88
83
86
% 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
Pasco flights leaving SEA 11 pm–12 am: 1Close ×
AS 2100flown by Horizon SEA 23:15 PSC 00:14 59m 212 87% 2.8% 31 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) 1,113 86% 0.3% 76 min
Alaska (incl. SkyWest, Horizon) 1,576 83% 1.8% 42 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.
AS 2100flown by Horizon SEA 23:15 PSC 00:14 87%
DL 3992flown by SkyWest SEA 10:35 PSC 11:48 86%
DL 3891flown by SkyWest SEA 13:30 PSC 14:45 83%
DL 4017flown by SkyWest SEA 22:50 PSC 23:59 83%
All 15 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 PSC 1h 13m 86% 0.3% 1,113 Flying now
Alaska SEA PSC 1h 03m 83% 1.8% 1,576 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