Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Philadelphia → Portland via Denver: arrives on time 85%
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09:35 PHL → 11:56 DENAA 3312 · American · 4h 21m · 85% on time, 0.0% cancelled
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3h 12m layover in Denver (DEN) · 90 min minimum on separate tickets
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15:08 DEN → 16:51 PDXF9 2553 · Frontier · 2h 45m · 87% on time, 0.5% cancelled
Total trip 10h 18m, scheduled departure to arrival (Portland is 3 h behind Philadelphia). Times are local. Both flew on 56 of the last 56 days.
Makes the connection99%The first flight arrived more than 102 minutes late on 1% of the days it flew: too late for the 90-minute minimum connection on a 3h 12m layover.
Arrives on time85%First flight not cancelled (0.0% are) × connection made (99%) × second flight not cancelled (0.5% are) and within 15 minutes (87%).
Total trip10h 18mPHL 09:35 to PDX 16:51, 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.