Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Chicago → Dulles via Denver: arrives on time 92%
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05:00 ORD → 06:42 DENUA 2666 · United · 2h 42m · 98% on time, 0.6% cancelled
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1h 18m layover in Denver (DEN) · 45 min minimum on one ticket
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08:00 DEN → 13:26 IADUA 1101 · United · 3h 26m · 94% on time, 0.3% cancelled
Total trip 7h 26m, scheduled departure to arrival (Dulles is 1 h ahead of Chicago). Times are local. Both flew on 56 of the last 56 days.
Makes the connection99%The first flight arrived more than 33 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 1h 18m layover.
Arrives on time92%First flight not cancelled (0.6% are) × connection made (99%) × second flight not cancelled (0.3% are) and within 15 minutes (94%).
Total trip7h 26mORD 05:00 to IAD 13:26, 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.