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Showing Delta only (incl. its regional partners)All airlines ×
1,301 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 9 in 10 depart on time. After 4 pm it’s 7 in 10.

Best time to leave 7–8 pm 90% arrive on time from SDF
Best single flight DL 5824 SDF 07:50 → DTW 09:16 · 90% on time Avoid DL 3993 SDF 10:39 → DTW 12:04 · 85% 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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SDF
90
86
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78
% 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 5824flown by Republic SDF 07:50 DTW 09:16 90%
DL 3821flown by SkyWest SDF 10:35 DTW 12:06 88%
DL 3993flown by SkyWest SDF 10:39 DTW 12:04 85%

All 6 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 5824flown by Republic SDF 07:50 DTW 09:16 1h 26m 365 90% 0.3% 79 min
DL 3821flown by SkyWest SDF 10:35 DTW 12:06 1h 31m 174 88% 1.7% 76 min
DL 3993flown by SkyWest SDF 10:39 DTW 12:04 1h 25m 170 85% 0.6% 150 min
DL 5160flown by Endeavor SDF 14:19 DTW 15:46 1h 27m 46 71% 2.2% 53 min
DL 4947flown by Endeavor SDF 17:26 DTW 18:58 1h 32m 55 65% 1.8% 95 min
DL 3957flown by SkyWest SDF 17:52 DTW 19:15 1h 23m 108 70% 0.9% 117 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 SDF DTW 1h 27m 81% 0.9% 1,301 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