Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Chicago → Portland via Detroit: arrives on time 82%
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08:52 ORD → 11:23 DTWDL 4456 · Delta, flown by SkyWest · 1h 31m · 74% on time, 0.0% cancelled
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2h 37m layover in Detroit (DTW) · 45 min minimum on one ticket
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14:00 DTW → 15:55 PWMDL 1821 · Delta · 1h 55m · 89% on time, 1.8% cancelled
Total trip 6h 03m, scheduled departure to arrival (Portland is 1 h ahead of Chicago). Times are local. Both flew on 42 of the last 56 days.
Makes the connection94%The first flight arrived more than 112 minutes late on 6% of the days it flew: too late for the 45-minute minimum connection on a 2h 37m layover.
Arrives on time82%First flight not cancelled (0.0% are) × connection made (94%) × second flight not cancelled (1.8% are) and within 15 minutes (89%).
Total trip6h 03mORD 08:52 to PWM 15:55, 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.