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Showing Delta only (incl. its regional partners)All airlines ×
1,627 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 96% depart on time. After 4 pm it’s 84%.

Best time to leave 6–7 am 96% arrive on time from SJU
Best single flight DL 1879 SJU 06:00 → ATL 09:50 · 96% on time Avoid DL 1882 SJU 14:41 → ATL 18:37 · 87% 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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SJU
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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 1879 SJU 06:00 ATL 09:50 96%
DL 1763 SJU 07:30 ATL 11:20 96%
DL 1757 SJU 12:54 ATL 16:47 92%
DL 1946 SJU 17:56 ATL 21:54 88%
DL 1882 SJU 14:41 ATL 18:37 87%

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 1879 SJU 06:00 ATL 09:50 3h 50m 184 96% 1.6% 39 min
DL 1763 SJU 07:30 ATL 11:20 3h 50m 365 96% 1.1% 107 min
DL 1757 SJU 12:54 ATL 16:47 3h 53m 300 92% 0.7% 76 min
DL 1882 SJU 14:41 ATL 18:37 3h 56m 365 87% 0.8% 88 min
DL 1946 SJU 17:56 ATL 21:54 3h 59m 365 88% 0.5% 78 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 SJU ATL 3h 56m 91% 0.9% 1,627 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