Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Portland → Chicago via Denver: arrives on time 48%
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15:37 PWM → 18:16 DENUA 287 · United · 4h 39m · 73% on time, 0.0% cancelled
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54m layover in Denver (DEN) · 45 min minimum on one ticket
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19:10 DEN → 22:49 ORDUA 2258 · United · 2h 39m · 71% on time, 2.6% cancelled
Total trip 8h 12m, scheduled departure to arrival (Chicago is 1 h behind Portland). Times are local. Both flew on 51 of the last 56 days.
Makes the connection69%The first flight arrived more than 9 minutes late on 31% of the days it flew: too late for the 45-minute minimum connection on a 54m layover.
Arrives on time48%First flight not cancelled (0.0% are) × connection made (69%) × second flight not cancelled (2.6% are) and within 15 minutes (71%).
Total trip8h 12mPWM 15:37 to ORD 22:49, 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.