Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Denver → Buffalo via Dulles: arrives on time 76%
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06:13 DEN → 11:41 IADUA 1279 · United · 3h 28m · 94% on time, 0.0% cancelled
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1h 18m layover in Dulles (IAD) · 45 min minimum on one ticket
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12:59 IAD → 14:25 BUFUA 4335 · United, flown by CommuteAir · 1h 26m · 82% on time, 2.6% cancelled
Total trip 6h 12m, scheduled departure to arrival (Buffalo is 2 h ahead of Denver). 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 time76%First flight not cancelled (0.0% are) × connection made (94%) × second flight not cancelled (2.6% are) and within 15 minutes (82%).
Total trip6h 12mDEN 06:13 to BUF 14:25, 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.