Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Dulles → San Jose via Chicago: arrives on time 38%
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17:42 IAD → 18:50 ORDUA 2497 · United · 2h 08m · 48% on time, 1.1% cancelled
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1h 08m layover in Chicago (ORD) · 45 min minimum on one ticket
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19:58 ORD → 22:43 SJCUA 481 · United · 4h 45m · 67% on time, 4.2% cancelled
Total trip 8h 01m, scheduled departure to arrival (San Jose is 3 h behind Dulles). Times are local. Both flew on 56 of the last 56 days.
Makes the connection60%The first flight arrived more than 23 minutes late on 40% of the days it flew: too late for the 45-minute minimum connection on a 1h 08m layover.
Arrives on time38%First flight not cancelled (1.1% are) × connection made (60%) × second flight not cancelled (4.2% are) and within 15 minutes (67%).
Total trip8h 01mIAD 17:42 to SJC 22:43, layover included
Tight connection: often missed. The first flight is late enough to miss it on more than 1 day in 4.
Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.