Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
New York → San Juan via Boston: arrives on time 71%
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06:00 JFK → 07:24 BOSDL 5765 · Delta, flown by Republic · 1h 24m · 92% on time, 2.3% cancelled
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1h 26m layover in Boston (BOS) · 45 min minimum on one ticket
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08:50 BOS → 12:54 SJUDL 1780 · Delta · 4h 04m · 78% on time, 1.1% cancelled
Total trip 6h 54m, scheduled departure to arrival. Times are local. Both flew on 56 of the last 56 days.
Makes the connection95%The first flight arrived more than 41 minutes late on 5% of the days it flew: too late for the 45-minute minimum connection on a 1h 26m layover.
Arrives on time71%First flight not cancelled (2.3% are) × connection made (95%) × second flight not cancelled (1.1% are) and within 15 minutes (78%).
Total trip6h 54mJFK 06:00 to SJU 12:54, 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.