Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Columbia → Chicago via Dulles: arrives on time 68%
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10:31 CAE → 12:09 IADUA 4283 · United, flown by CommuteAir · 1h 38m · 83% on time, 0.4% cancelled
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1h 06m layover in Dulles (IAD) · 45 min minimum on one ticket
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13:15 IAD → 14:29 ORDUA 2331 · United · 2h 14m · 81% on time, 0.8% cancelled
Total trip 4h 58m, scheduled departure to arrival (Chicago is 1 h behind Columbia). Times are local. Both flew on 51 of the last 56 days.
Makes the connection84%The first flight arrived more than 21 minutes late on 16% of the days it flew: too late for the 45-minute minimum connection on a 1h 06m layover.
Arrives on time68%First flight not cancelled (0.4% are) × connection made (84%) × second flight not cancelled (0.8% are) and within 15 minutes (81%).
Total trip4h 58mCAE 10:31 to ORD 14:29, 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.