Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Boston → San Juan via Newark: arrives on time 73%
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06:05 BOS → 07:29 EWRUA 1833 · United · 1h 24m · 94% on time, 1.8% cancelled
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2h 17m layover in Newark (EWR) · 45 min minimum on one ticket
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09:46 EWR → 13:45 SJUUA 1556 · United · 3h 59m · 77% on time, 1.4% cancelled
Total trip 7h 40m, scheduled departure to arrival. Times are local. Both flew on 48 of the last 56 days.
Makes the connection98%The first flight arrived more than 92 minutes late on 2% of the days it flew: too late for the 45-minute minimum connection on a 2h 17m layover.
Arrives on time73%First flight not cancelled (1.8% are) × connection made (98%) × second flight not cancelled (1.4% are) and within 15 minutes (77%).
Total trip7h 40mBOS 06:05 to SJU 13:45, 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.