Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Dulles → Sacramento via Denver: arrives on time 61%
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17:41 IAD → 19:45 DENUA 599 · United · 4h 04m · 74% on time, 1.2% cancelled
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1h 10m layover in Denver (DEN) · 45 min minimum on one ticket
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20:55 DEN → 22:30 SMFUA 1602 · United · 2h 40m · 77% on time, 0.6% cancelled
Total trip 7h 54m, scheduled departure to arrival (Sacramento is 3 h behind Dulles). Times are local. Both flew on 0 of the last 56 days, too few to list among the best connections.
Makes the connection82%The first flight arrived more than 25 minutes late on 18% of the days it flew: too late for the 45-minute minimum connection on a 1h 10m layover.
Arrives on time61%First flight not cancelled (1.2% are) × connection made (82%) × second flight not cancelled (0.6% are) and within 15 minutes (77%).
Total trip7h 54mIAD 17:41 to SMF 22:30, 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.