Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Newark → San Juan via Dulles: arrives on time 41%
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15:08 EWR → 16:32 IADUA 1992 · United · 1h 24m · 68% on time, 1.8% cancelled
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52m layover in Dulles (IAD) · 45 min minimum on one ticket
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17:24 IAD → 21:24 SJUUA 2025 · United · 4h 00m · 73% on time, 0.4% cancelled
Total trip 6h 16m, scheduled departure to arrival. Times are local. Both flew on 56 of the last 56 days.
Makes the connection58%The first flight arrived more than 7 minutes late on 42% of the days it flew: too late for the 45-minute minimum connection on a 52m layover.
Arrives on time41%First flight not cancelled (1.8% are) × connection made (58%) × second flight not cancelled (0.4% are) and within 15 minutes (73%).
Total trip6h 16mEWR 15:08 to SJU 21:24, layover included
Tight connection: often missed. The first flight is late enough to miss it on more than 1 day in 4.
Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.