Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Juan → Boston via New York: arrives on time 53%
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07:50 SJU → 11:52 JFKB6 904 · JetBlue · 4h 03m · 75% on time, 2.9% cancelled
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4h 03m layover in New York (JFK) · 45 min minimum on one ticket
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15:55 JFK → 17:22 BOSB6 618 · JetBlue · 1h 27m · 59% on time, 5.1% cancelled
Total trip 9h 32m, scheduled departure to arrival. Times are local. Both flew on 50 of the last 56 days.
Makes the connection98%The first flight arrived more than 198 minutes late on 2% of the days it flew: too late for the 45-minute minimum connection on a 4h 03m layover.
Arrives on time53%First flight not cancelled (2.9% are) × connection made (98%) × second flight not cancelled (5.1% are) and within 15 minutes (59%).
Total trip9h 32mSJU 07:50 to BOS 17:22, layover included
Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.