Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Diego → Detroit via Houston: arrives on time 58%
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11:58 SAN → 17:25 IAHUA 2237 · United · 3h 27m · 79% on time, 0.3% cancelled
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1h 05m layover in Houston (IAH) · 45 min minimum on one ticket
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18:30 IAH → 22:24 DTWUA 685 · United · 2h 54m · 71% on time, 0.4% cancelled
Total trip 7h 26m, scheduled departure to arrival (Detroit is 3 h ahead of San Diego). Times are local. Both flew on 25 of the last 56 days.
Makes the connection82%The first flight arrived more than 20 minutes late on 18% of the days it flew: too late for the 45-minute minimum connection on a 1h 05m layover.
Arrives on time58%First flight not cancelled (0.3% are) × connection made (82%) × second flight not cancelled (0.4% are) and within 15 minutes (71%).
Total trip7h 26mSAN 11:58 to DTW 22:24, 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.