Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Houston → Charleston via Denver: arrives on time 33%
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12:55 HOU → 14:25 DENWN 3069 · Southwest · 2h 30m · 58% on time, 0.0% cancelled
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55m layover in Denver (DEN) · 45 min minimum on one ticket
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15:20 DEN → 20:40 CHSWN 1142 · Southwest · 3h 20m · 58% on time, 0.0% cancelled
Total trip 6h 45m, scheduled departure to arrival (Charleston is 1 h ahead of Houston). Times are local. Both flew on 24 of the last 56 days.
Makes the connection58%The first flight arrived more than 10 minutes late on 42% of the days it flew: too late for the 45-minute minimum connection on a 55m layover.
Arrives on time33%First flight not cancelled (0.0% are) × connection made (58%) × second flight not cancelled (0.0% are) and within 15 minutes (58%).
Total trip6h 45mHOU 12:55 to CHS 20:40, 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.