Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Denver → Portland via Chicago: arrives on time 41%
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13:25 DEN → 17:05 ORDUA 617 · United · 2h 40m · 68% on time, 1.4% cancelled
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1h 03m layover in Chicago (ORD) · 45 min minimum on one ticket
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18:08 ORD → 21:41 PWMUA 1401 · United · 2h 33m · 59% on time, 1.4% cancelled
Total trip 6h 16m, scheduled departure to arrival (Portland is 2 h ahead of Denver). Times are local. Both flew on 56 of the last 56 days.
Makes the connection71%The first flight arrived more than 18 minutes late on 29% of the days it flew: too late for the 45-minute minimum connection on a 1h 03m layover.
Arrives on time41%First flight not cancelled (1.4% are) × connection made (71%) × second flight not cancelled (1.4% are) and within 15 minutes (59%).
Total trip6h 16mDEN 13:25 to PWM 21:41, 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.