Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Portland → San Francisco via Denver: arrives on time 76%
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07:30 PDX → 11:00 DENWN 4099 · Southwest · 2h 30m · 96% on time, 0.0% cancelled
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2h 25m layover in Denver (DEN) · 90 min minimum on separate tickets
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13:25 DEN → 15:09 SFOUA 1812 · United · 2h 44m · 76% on time, 0.0% cancelled
Total trip 7h 39m, scheduled departure to arrival. Times are local. Both flew on 24 of the last 56 days.
Makes the connection100%The first flight arrived more than 55 minutes late on 0% of the days it flew: too late for the 90-minute minimum connection on a 2h 25m layover.
Arrives on time76%First flight not cancelled (0.0% are) × connection made (100%) × second flight not cancelled (0.0% are) and within 15 minutes (76%).
Total trip7h 39mPDX 07:30 to SFO 15:09, 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.