Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Antonio → Boston via Houston: arrives on time 86%
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05:30 SAT → 06:37 IAHUA 469 · United · 1h 07m · 96% on time, 2.1% cancelled
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53m layover in Houston (IAH) · 45 min minimum on one ticket
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07:30 IAH → 12:28 BOSUA 1977 · United · 3h 58m · 94% on time, 1.1% cancelled
Total trip 5h 58m, scheduled departure to arrival (Boston is 1 h ahead of San Antonio). Times are local. Both flew on 54 of the last 56 days.
Makes the connection95%The first flight arrived more than 8 minutes late on 5% of the days it flew: too late for the 45-minute minimum connection on a 53m layover.
Arrives on time86%First flight not cancelled (2.1% are) × connection made (95%) × second flight not cancelled (1.1% are) and within 15 minutes (94%).
Total trip5h 58mSAT 05:30 to BOS 12:28, 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.