Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Dulles → Portland via Denver: arrives on time 88%
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08:15 IAD → 10:10 DENUA 792 · United · 3h 55m · 95% on time, 0.0% cancelled
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3h 17m layover in Denver (DEN) · 45 min minimum on one ticket
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13:27 DEN → 15:13 PDXUA 2455 · United · 2h 46m · 90% on time, 0.0% cancelled
Total trip 9h 58m, scheduled departure to arrival (Portland is 3 h behind Dulles). Times are local. Both flew on 37 of the last 56 days.
Makes the connection97%The first flight arrived more than 152 minutes late on 3% of the days it flew: too late for the 45-minute minimum connection on a 3h 17m layover.
Arrives on time88%First flight not cancelled (0.0% are) × connection made (97%) × second flight not cancelled (0.0% are) and within 15 minutes (90%).
Total trip9h 58mIAD 08:15 to PDX 15:13, 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.