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Showing Delta only (incl. its regional partners)All airlines ×
1,520 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 88% depart on time. After 4 pm it’s 73%.

Best time to leave 3–4 pm 96% arrive on time from DTW
Best single flight DL 728 DTW 12:31 → SEA 14:30 · 78% on time Avoid DL 565 DTW 20:34 → SEA 22:34 · 64% 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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DTW
91
87
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82
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68
62
% 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 728 DTW 12:31 SEA 14:30 78%
DL 734 DTW 08:30 SEA 10:31 76%
DL 944 DTW 16:46 SEA 18:45 72%
DL 565 DTW 20:34 SEA 22:34 64%

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 814 DTW 06:00 SEA 07:55 4h 55m 65 91% 1.5% 66 min
DL 734 DTW 08:30 SEA 10:31 5h 01m 365 76% 1.6% 43 min
DL 728 DTW 12:31 SEA 14:30 4h 59m 364 78% 0.8% 50 min
DL 944 DTW 16:46 SEA 18:45 4h 59m 327 72% 0.0% 45 min
DL 565 DTW 20:34 SEA 22:34 5h 00m 335 64% 0.9% 79 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 DTW SEA 4h 59m 74% 0.9% 1,520 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