Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Philadelphia → San Diego via Denver: arrives on time 34%
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16:14 PHL → 18:25 DENUA 2644 · United · 4h 11m · 60% on time, 0.0% cancelled
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55m layover in Denver (DEN) · 45 min minimum on one ticket
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19:20 DEN → 20:46 SANUA 540 · United · 2h 26m · 65% on time, 0.3% cancelled
Total trip 7h 32m, scheduled departure to arrival (San Diego is 3 h behind Philadelphia). Times are local. Both flew on 55 of the last 56 days.
Makes the connection53%The first flight arrived more than 10 minutes late on 47% of the days it flew: too late for the 45-minute minimum connection on a 55m layover.
Arrives on time34%First flight not cancelled (0.0% are) × connection made (53%) × second flight not cancelled (0.3% are) and within 15 minutes (65%).
Total trip7h 32mPHL 16:14 to SAN 20:46, 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.