Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Dulles → Denver via Chicago: arrives on time 91%
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08:15 IAD → 09:36 ORDUA 1775 · United · 2h 21m · 84% on time, 0.6% cancelled
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1h 18m layover in Chicago (ORD) · 45 min minimum on one ticket
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10:54 ORD → 12:45 DENUA 581 · United · 2h 51m · 97% on time, 0.0% cancelled
Total trip 6h 30m, scheduled departure to arrival (Denver is 2 h behind Dulles). Times are local. Both flew on 37 of the last 56 days.
Makes the connection94%The first flight arrived more than 33 minutes late on 6% of the days it flew: too late for the 45-minute minimum connection on a 1h 18m layover.
Arrives on time91%First flight not cancelled (0.6% are) × connection made (94%) × second flight not cancelled (0.0% are) and within 15 minutes (97%).
Total trip6h 30mIAD 08:15 to DEN 12:45, 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.