Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Antonio → Houston via St Louis: arrives on time 79%
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07:10 SAT → 09:15 STLWN 4809 · Southwest · 2h 10m · 90% on time, 0.0% cancelled
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1h 55m layover in St Louis (STL) · 90 min minimum on separate tickets
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11:10 STL → 13:25 IAHUA 6213 · United, flown by Mesa · 2h 15m · 85% on time, 0.4% cancelled
Total trip 6h 15m, scheduled departure to arrival. Times are local. Both flew on 47 of the last 56 days.
Makes the connection94%The first flight arrived more than 25 minutes late on 6% of the days it flew: too late for the 90-minute minimum connection on a 1h 55m layover.
Arrives on time79%First flight not cancelled (0.0% are) × connection made (94%) × second flight not cancelled (0.4% are) and within 15 minutes (85%).
Total trip6h 15mSAT 07:10 to IAH 13:25, 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.