Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Juan → Chicago via Dulles: arrives on time 73%
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16:55 SJU → 20:56 IADUA 2024 · United · 4h 01m · 86% on time, 0.6% cancelled
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1h 24m layover in Dulles (IAD) · 45 min minimum on one ticket
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22:20 IAD → 23:31 ORDUA 1738 · United · 2h 11m · 80% on time, 2.2% cancelled
Total trip 7h 36m, scheduled departure to arrival (Chicago is 1 h behind San Juan). Times are local. Both flew on 55 of the last 56 days.
Makes the connection93%The first flight arrived more than 39 minutes late on 7% of the days it flew: too late for the 45-minute minimum connection on a 1h 24m layover.
Arrives on time73%First flight not cancelled (0.6% are) × connection made (93%) × second flight not cancelled (2.2% are) and within 15 minutes (80%).
Total trip7h 36mSJU 16:55 to ORD 23:31, 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.