Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Juan → Denver via Houston: arrives on time 72%
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02:05 SJU → 06:01 IAHUA 2495 · United · 4h 56m · 94% on time, 0.7% cancelled
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1h 19m layover in Houston (IAH) · 45 min minimum on one ticket
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07:20 IAH → 08:52 DENUA 1575 · United · 2h 32m · 77% on time, 1.4% cancelled
Total trip 8h 47m, scheduled departure to arrival (Denver is 2 h behind San Juan). Times are local. Both flew on 56 of the last 56 days.
Makes the connection95%The first flight arrived more than 34 minutes late on 5% of the days it flew: too late for the 45-minute minimum connection on a 1h 19m layover.
Arrives on time72%First flight not cancelled (0.7% are) × connection made (95%) × second flight not cancelled (1.4% are) and within 15 minutes (77%).
Total trip8h 47mSJU 02:05 to DEN 08:52, 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.