Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Francisco → Denver via Phoenix: arrives on time 75%
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05:30 SFO → 07:30 PHXWN 4145 · Southwest · 2h 00m · 94% on time, 0.0% cancelled
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1h 20m layover in Phoenix (PHX) · 45 min minimum on one ticket
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08:50 PHX → 11:35 DENWN 3261 · Southwest · 1h 45m · 80% on time, 0.0% cancelled
Total trip 5h 05m, scheduled departure to arrival (Denver is 1 h ahead of San Francisco). Times are local. Both flew on 48 of the last 56 days.
Makes the connection94%The first flight arrived more than 35 minutes late on 6% of the days it flew: too late for the 45-minute minimum connection on a 1h 20m layover.
Arrives on time75%First flight not cancelled (0.0% are) × connection made (94%) × second flight not cancelled (0.0% are) and within 15 minutes (80%).
Total trip5h 05mSFO 05:30 to DEN 11:35, 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.