Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Antonio → Dulles via Houston: arrives on time 58%
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16:18 SAT → 17:25 IAHUA 404 · United · 1h 07m · 78% on time, 0.0% cancelled
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1h 07m layover in Houston (IAH) · 45 min minimum on one ticket
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18:32 IAH → 22:43 IADUA 1373 · United · 3h 11m · 73% on time, 1.2% cancelled
Total trip 5h 25m, scheduled departure to arrival (Dulles is 1 h ahead of San Antonio). Times are local. Both flew on 56 of the last 56 days.
Makes the connection80%The first flight arrived more than 22 minutes late on 20% of the days it flew: too late for the 45-minute minimum connection on a 1h 07m layover.
Arrives on time58%First flight not cancelled (0.0% are) × connection made (80%) × second flight not cancelled (1.2% are) and within 15 minutes (73%).
Total trip5h 25mSAT 16:18 to IAD 22:43, 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.