Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Denver → Ontario via Phoenix: arrives on time 74%
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08:00 DEN → 09:05 PHXWN 3336 · Southwest · 2h 05m · 83% on time, 0.0% cancelled
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1h 00m layover in Phoenix (PHX) · 45 min minimum on one ticket
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10:05 PHX → 11:20 ONTWN 431 · Southwest · 1h 15m · 88% on time, 0.0% cancelled
Total trip 4h 20m, scheduled departure to arrival (Ontario is 1 h behind Denver). Times are local. Both flew on 24 of the last 56 days.
Makes the connection83%The first flight arrived more than 15 minutes late on 17% of the days it flew: too late for the 45-minute minimum connection on a 1h 00m layover.
Arrives on time74%First flight not cancelled (0.0% are) × connection made (83%) × second flight not cancelled (0.0% are) and within 15 minutes (88%).
Total trip4h 20mDEN 08:00 to ONT 11:20, 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.