Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Denver → Dallas via Houston: arrives on time 32%
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17:08 DEN → 20:45 HOUWN 1545 · Southwest · 2h 40m · 41% on time, 2.0% cancelled
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1h 15m layover in Houston (HOU) · 45 min minimum on one ticket
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22:00 HOU → 23:10 DALWN 64 · Southwest · 1h 10m · 65% on time, 1.0% cancelled
Total trip 5h 02m, scheduled departure to arrival (Dallas is 1 h ahead of Denver). Times are local. Both flew on 31 of the last 56 days.
Makes the connection51%The first flight arrived more than 30 minutes late on 49% of the days it flew: too late for the 45-minute minimum connection on a 1h 15m layover.
Arrives on time32%First flight not cancelled (2.0% are) × connection made (51%) × second flight not cancelled (1.0% are) and within 15 minutes (65%).
Total trip5h 02mDEN 17:08 to DAL 23:10, 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.