Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Juan → Dallas-Fort Worth via Houston: arrives on time 60%
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14:55 SJU → 18:51 IAHUA 668 · United · 4h 56m · 81% on time, 0.3% cancelled
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1h 08m layover in Houston (IAH) · 45 min minimum on one ticket
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19:59 IAH → 21:25 DFWUA 1949 · United · 1h 26m · 71% on time, 0.9% cancelled
Total trip 7h 30m, scheduled departure to arrival (Dallas-Fort Worth is 1 h behind San Juan). Times are local. Both flew on 45 of the last 56 days.
Makes the connection86%The first flight arrived more than 23 minutes late on 14% of the days it flew: too late for the 45-minute minimum connection on a 1h 08m layover.
Arrives on time60%First flight not cancelled (0.3% are) × connection made (86%) × second flight not cancelled (0.9% are) and within 15 minutes (71%).
Total trip7h 30mSJU 14:55 to DFW 21:25, 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.