Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Juan → Chicago via Houston: arrives on time 70%
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14:55 SJU → 18:51 IAHUA 668 · United · 4h 56m · 81% on time, 0.3% cancelled
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3h 17m layover in Houston (IAH) · 45 min minimum on one ticket
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22:08 IAH → 00:45 ORD +1 dayUA 1752 · United · 2h 37m · 71% on time, 0.4% cancelled
Total trip 10h 50m, scheduled departure to arrival (Chicago is 1 h behind San Juan). Times are local. Both flew on 46 of the last 56 days.
Makes the connection99%The first flight arrived more than 152 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 3h 17m layover.
Arrives on time70%First flight not cancelled (0.3% are) × connection made (99%) × second flight not cancelled (0.4% are) and within 15 minutes (71%).
Total trip10h 50mSJU 14:55 to ORD 00:45, 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.