Showing Delta only (incl. its regional partners)All airlines ×

324 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

No clear winner: Delta’s DTW → SJU flights land within a few points of 3 in 4 on time whatever the hour.

Best time to leave 8–9 am 76% arrive on time from DTW

Best single flight DL 1913 DTW 08:35 → SJU 13:04 · 76% 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).

DTW

% 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 1913	DTW 08:35	SJU 13:04	76%

All 1 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 1913	DTW 08:35	SJU 13:04	4h 29m	307	76%	0.7%	48 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	SJU	4h 29m	76%	0.9%	324	Flying now

Alternatives with one stop

All connections →


Delta Details →	DTW 05:17 → ATL 07:10DL 2375	56m Atlanta	ATL 08:06 → SJU 11:44DL 1757	6h 27m	89%	78%

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