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Showing Delta only (incl. its regional partners)All airlines ×
1,704 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 92% depart on time. After 4 pm it’s 77%.

Best time to leave 10–11 am 93% arrive on time from SEA
Best single flight DL 2508 SEA 07:15 → SAN 10:08 · 91% on time Avoid DL 2672 SEA 19:45 → SAN 22:38 · 75% 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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9
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SEA
92
85
93
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91
83
77
% 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.

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 2508 SEA 07:15 SAN 10:08 91%
DL 2613 SEA 15:25 SAN 18:13 84%
DL 2533 SEA 09:45 SAN 12:38 82%
DL 2572 SEA 12:05 SAN 15:04 82%
DL 2672 SEA 19:45 SAN 22:38 75%

All 5 Delta 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.
DL 2508 SEA 07:15 SAN 10:08 2h 53m 349 91% 0.9% 57 min
DL 2533 SEA 09:45 SAN 12:38 2h 53m 339 82% 0.9% 46 min
DL 2572 SEA 12:05 SAN 15:04 2h 59m 361 82% 1.4% 63 min
DL 2613 SEA 15:25 SAN 18:13 2h 48m 268 84% 0.7% 58 min
DL 2672 SEA 19:45 SAN 22:38 2h 53m 359 75% 1.1% 53 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 SEA SAN 2h 53m 83% 1.0% 1,704 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