Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Houston → San Francisco via San Diego: arrives on time 73%
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09:30 IAH → 10:51 SANUA 2491 · United · 3h 21m · 86% on time, 0.3% cancelled
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2h 48m layover in San Diego (SAN) · 45 min minimum on one ticket
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13:39 SAN → 15:19 SFOUA 1763 · United · 1h 40m · 74% on time, 0.0% cancelled
Total trip 7h 49m, scheduled departure to arrival (San Francisco is 2 h behind Houston). Times are local. Both flew on 56 of the last 56 days.
Makes the connection99%The first flight arrived more than 123 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 2h 48m layover.
Arrives on time73%First flight not cancelled (0.3% are) × connection made (99%) × second flight not cancelled (0.0% are) and within 15 minutes (74%).
Total trip7h 49mIAH 09:30 to SFO 15:19, 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.