Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Houston → San Francisco via Denver: arrives on time 14%
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08:15 HOU → 09:45 DENWN 1971 · Southwest · 2h 30m · 79% on time, 0.0% cancelled
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1h 55m layover in Denver (DEN) · 45 min minimum on one ticket
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11:40 DEN → 13:20 SFOWN 1719 · Southwest · 2h 40m · 14% on time, 0.0% cancelled
Total trip 7h 05m, scheduled departure to arrival (San Francisco is 2 h behind Houston). Times are local. Both flew on 40 of the last 56 days.
Makes the connection98%The first flight arrived more than 70 minutes late on 2% of the days it flew: too late for the 45-minute minimum connection on a 1h 55m layover.
Arrives on time14%First flight not cancelled (0.0% are) × connection made (98%) × second flight not cancelled (0.0% are) and within 15 minutes (14%).
Total trip7h 05mHOU 08:15 to SFO 13:20, 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.