Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Juan → Boston via Dulles: arrives on time 79%
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07:20 SJU → 11:21 IADUA 2022 · United · 4h 01m · 96% on time, 0.7% cancelled
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1h 34m layover in Dulles (IAD) · 45 min minimum on one ticket
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12:55 IAD → 14:40 BOSUA 1392 · United · 1h 45m · 82% on time, 1.3% cancelled
Total trip 7h 20m, scheduled departure to arrival. Times are local. Both flew on 56 of the last 56 days.
Makes the connection99%The first flight arrived more than 49 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 1h 34m layover.
Arrives on time79%First flight not cancelled (0.7% are) × connection made (99%) × second flight not cancelled (1.3% are) and within 15 minutes (82%).
Total trip7h 20mSJU 07:20 to BOS 14:40, 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.