Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Juan → Boston via New York: arrives on time 52%
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12:04 SJU → 15:59 JFKB6 1104 · JetBlue · 4h 00m · 75% on time, 3.4% cancelled
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1h 16m layover in New York (JFK) · 45 min minimum on one ticket
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17:15 JFK → 18:49 BOSB6 818 · JetBlue · 1h 34m · 69% on time, 5.1% cancelled
Total trip 6h 45m, scheduled departure to arrival. Times are local. Both flew on 22 of the last 56 days.
Makes the connection82%The first flight arrived more than 31 minutes late on 18% of the days it flew: too late for the 45-minute minimum connection on a 1h 16m layover.
Arrives on time52%First flight not cancelled (3.4% are) × connection made (82%) × second flight not cancelled (5.1% are) and within 15 minutes (69%).
Total trip6h 45mSJU 12:04 to BOS 18:49, 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.