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

1,104 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 7–8 am 93% arrive on time from SJU

Best single flight DL 1854 SJU 07:05 → JFK 11:01 · 93% on time Avoid DL 1966 SJU 13:10 → JFK 17:19 · 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).

SJU

% 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 1854	SJU 07:05	JFK 11:01	93%
DL 1961	SJU 17:45	JFK 22:01	87%
DL 1966	SJU 13:10	JFK 17:19	85%

All 3 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 1854	SJU 07:05	JFK 11:01	3h 56m	365	93%	1.1%	108 min
DL 1966	SJU 13:10	JFK 17:19	4h 09m	263	85%	2.3%	68 min
DL 1961	SJU 17:45	JFK 22:01	4h 16m	267	87%	1.9%	60 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	JFK	4h 17m	88%	2.2%	1,104	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