Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Dulles → Sacramento via Denver: arrives on time 77%
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12:48 IAD → 14:42 DENUA 1587 · United · 3h 54m · 92% on time, 0.3% cancelled
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1h 21m layover in Denver (DEN) · 45 min minimum on one ticket
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16:03 DEN → 17:41 SMFUA 1208 · United · 2h 38m · 82% on time, 0.6% cancelled
Total trip 7h 53m, scheduled departure to arrival (Sacramento is 3 h behind Dulles). Times are local. Both flew on 55 of the last 56 days.
Makes the connection94%The first flight arrived more than 36 minutes late on 6% of the days it flew: too late for the 45-minute minimum connection on a 1h 21m layover.
Arrives on time77%First flight not cancelled (0.3% are) × connection made (94%) × second flight not cancelled (0.6% are) and within 15 minutes (82%).
Total trip7h 53mIAD 12:48 to SMF 17:41, 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.