Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
St Louis → San Antonio via Houston: arrives on time 49%
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18:30 STL → 20:50 IAHUA 6284 · United, flown by Mesa · 2h 20m · 75% on time, 0.0% cancelled
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50m layover in Houston (IAH) · 45 min minimum on one ticket
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21:40 IAH → 22:42 SATUA 2198 · United · 1h 02m · 69% on time, 1.0% cancelled
Total trip 4h 12m, scheduled departure to arrival. Times are local. Both flew on 31 of the last 56 days.
Makes the connection72%The first flight arrived more than 5 minutes late on 28% of the days it flew: too late for the 45-minute minimum connection on a 50m layover.
Arrives on time49%First flight not cancelled (0.0% are) × connection made (72%) × second flight not cancelled (1.0% are) and within 15 minutes (69%).
Total trip4h 12mSTL 18:30 to SAT 22:42, layover included
Tight connection: often missed. The first flight is late enough to miss it on more than 1 day in 4.
Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.