Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Chicago → San Francisco via Dulles: arrives on time 77%
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06:30 ORD → 09:24 IADUA 1689 · United · 1h 54m · 100% on time, 1.4% cancelled
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3h 16m layover in Dulles (IAD) · 45 min minimum on one ticket
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12:40 IAD → 15:27 SFOUA 1434 · United · 5h 47m · 79% on time, 0.3% cancelled
Total trip 10h 57m, scheduled departure to arrival (San Francisco is 2 h behind Chicago). Times are local. Both flew on 56 of the last 56 days.
Makes the connection100%The first flight arrived more than 151 minutes late on 0% of the days it flew: too late for the 45-minute minimum connection on a 3h 16m layover.
Arrives on time77%First flight not cancelled (1.4% are) × connection made (100%) × second flight not cancelled (0.3% are) and within 15 minutes (79%).
Total trip10h 57mORD 06:30 to SFO 15:27, 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.