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Showing JetBlue only (incl. its regional partners)All airlines ×
1,192 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 57%.

Best time to leave 8–9 am 84% arrive on time from BOS
Best single flight B6 861 BOS 09:40 → SJU 13:42 · 75% on time Avoid B6 561 BOS 21:44 → SJU 02:17 · 51% 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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BOS
88
92
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73
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53
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59
% 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.
B6 861 BOS 09:40 SJU 13:42 75%
B6 561 BOS 21:44 SJU 02:17 51%

All 4 JetBlue 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 761 BOS 06:00 SJU 10:00 4h 00m 104 79% 3.8% 69 min
B6 861 BOS 09:40 SJU 13:42 4h 01m 364 75% 2.7% 65 min
B6 261 BOS 12:35 SJU 16:37 4h 00m 122 68% 0.8% 74 min
B6 561 BOS 21:44 SJU 02:17 4h 00m 274 51% 3.6% 72 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.
JetBlue BOS SJU 4h 02m 68% 2.8% 1,192 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