Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Houston → Ontario via Denver: arrives on time 60%
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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 10m layover in Denver (DEN) · 45 min minimum on one ticket
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10:55 DEN → 12:10 ONTWN 4080 · Southwest · 2h 15m · 65% on time, 0.0% cancelled
Total trip 5h 55m, scheduled departure to arrival (Ontario is 2 h behind Houston). Times are local. Both flew on 32 of the last 56 days.
Makes the connection93%The first flight arrived more than 25 minutes late on 7% of the days it flew: too late for the 45-minute minimum connection on a 1h 10m layover.
Arrives on time60%First flight not cancelled (0.0% are) × connection made (93%) × second flight not cancelled (0.0% are) and within 15 minutes (65%).
Total trip5h 55mHOU 08:15 to ONT 12:10, 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.