Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Juan → Boston via New York: arrives on time 68%
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05:01 SJU → 08:54 JFKB6 2904 · JetBlue · 3h 53m · 84% on time, 2.4% cancelled
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1h 06m layover in New York (JFK) · 45 min minimum on one ticket
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10:00 JFK → 11:33 BOSB6 1018 · JetBlue · 1h 32m · 84% on time, 4.8% cancelled
Total trip 6h 31m, scheduled departure to arrival. Times are local. Both flew on 55 of the last 56 days.
Makes the connection87%The first flight arrived more than 21 minutes late on 13% of the days it flew: too late for the 45-minute minimum connection on a 1h 06m layover.
Arrives on time68%First flight not cancelled (2.4% are) × connection made (87%) × second flight not cancelled (4.8% are) and within 15 minutes (84%).
Total trip6h 31mSJU 05:01 to BOS 11:33, 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.