Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Chicago → San Francisco via Dulles: arrives on time 81%
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08:40 ORD → 11:52 IADUA 2277 · United · 2h 12m · 92% on time, 0.0% cancelled
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2h 59m layover in Dulles (IAD) · 45 min minimum on one ticket
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14:51 IAD → 17:38 SFOUA 2862 · United · 5h 47m · 82% on time, 0.3% cancelled
Total trip 10h 58m, 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 connection99%The first flight arrived more than 134 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 2h 59m layover.
Arrives on time81%First flight not cancelled (0.0% are) × connection made (99%) × second flight not cancelled (0.3% are) and within 15 minutes (82%).
Total trip10h 58mORD 08:40 to SFO 17:38, 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.