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3,958 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 6–7 am 95% arrive on time from SEA
Best single flight AS 1387 SEA 19:42 → SNA 22:30 · 97% on time Avoid DL 2318 SEA 15:00 → SNA 17:47 · 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).

6
7
8
9
10
11
12
13
14
15
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17
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SEA
92
91
91
84
83
81
84
81
85
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88
85
84
88
% 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
Santa Ana flights leaving SEA 10–11 am: 2Close ×
DL 691 SEA 10:05 SNA 13:05 3h 00m 31 87% 0.0% 27 min
DL 952 SEA 10:10 SNA 13:10 3h 00m 55 73% 0.0% 63 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.
Alaska 2,580 87% 0.8% 42 min
Delta (incl. SkyWest) 1,378 83% 0.8% 66 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 1387 SEA 19:42 SNA 22:30 97%
AS 699 SEA 06:40 SNA 09:34 92%
AS 1307 SEA 18:42 SNA 21:30 88%
AS 773 SEA 13:49 SNA 16:41 87%
AS 759 SEA 08:18 SNA 11:15 86%
· · ·
AS 1357 SEA 11:06 SNA 13:55 85%
DL 2318 SEA 15:00 SNA 17:47 81%
All 17 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.
Alaska SEA SNA 2h 50m 87% 0.8% 2,580 Flying now
Delta SEA SNA 2h 54m 83% 0.8% 1,378 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