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Showing Delta only (incl. its regional partners)All airlines ×
1,517 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 93% depart on time. After 4 pm it’s 77%.

Best time to leave 6–7 am 93% arrive on time from SEA
Best single flight DL 812 SEA 05:30 → DTW 12:40 · 92% on time Avoid DL 1706 SEA 11:25 → DTW 18:41 · 79% 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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% 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 812 SEA 05:30 DTW 12:40 92%
DL 810 SEA 23:10 DTW 06:27 88%
DL 533 SEA 14:30 DTW 21:48 86%
DL 1706 SEA 11:25 DTW 18:41 79%

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 812 SEA 05:30 DTW 12:40 4h 10m 365 92% 0.5% 101 min
DL 2324 SEA 09:45 DTW 17:05 4h 20m 127 90% 1.6% 48 min
DL 1706 SEA 11:25 DTW 18:41 4h 16m 302 79% 1.3% 56 min
DL 533 SEA 14:30 DTW 21:48 4h 18m 316 86% 0.9% 73 min
DL 810 SEA 23:10 DTW 06:27 4h 17m 361 88% 1.1% 72 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 DTW 4h 18m 87% 1.0% 1,517 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