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3,596 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 am 92% arrive on time from SJU
Best single flight DL 1854 SJU 07:05 → JFK 11:01 · 93% on time Avoid B6 1004 SJU 15:24 → JFK 19:26 · 69% 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).

5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
SJU
83
92
95
86
91
67
71
76
75
76
58
77
75
65
46
71
% 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.

Airlines on this route

Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.
Delta 1,104 88% 2.2% 79 min
Frontier 255 80% 2.0% 63 min
JetBlue 2,237 74% 3.8% 84 min

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%
B6 2904 SJU 05:01 JFK 08:54 84%
B6 1604 SJU 13:12 JFK 17:20 82%
· · ·
B6 1104 SJU 12:04 JFK 15:59 75%
B6 304 SJU 18:21 JFK 22:29 71%
B6 1004 SJU 15:24 JFK 19:26 69%

All 11 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.
B6 2904 SJU 05:01 JFK 08:54 3h 53m 164 84% 2.4% 52 min
DL 1854 SJU 07:05 JFK 11:01 3h 56m 365 93% 1.1% 108 min
B6 904 SJU 07:50 JFK 11:52 4h 03m 309 75% 2.9% 78 min
B6 1104 SJU 12:04 JFK 15:59 4h 00m 179 75% 3.4% 68 min
DL 1966 SJU 13:10 JFK 17:19 4h 09m 263 85% 2.3% 68 min
B6 1604 SJU 13:12 JFK 17:20 4h 07m 347 82% 2.9% 72 min
B6 1004 SJU 15:24 JFK 19:26 3h 58m 254 69% 6.7% 109 min
DL 1961 SJU 17:45 JFK 22:01 4h 16m 267 87% 1.9% 60 min
B6 304 SJU 18:21 JFK 22:29 4h 08m 222 71% 4.5% 95 min
B6 504 SJU 19:50 JFK 22:00 3h 59m 112 72% 2.7% 61 min
B6 704 SJU 22:32 JFK 02:26 3h 54m 90 54% 5.6% 148 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
JetBlue SJU JFK 4h 04m 74% 3.8% 2,237 Flying now
Frontier SJU JFK 4h 14m 80% 2.0% 255 Not 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