Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Ontario → Dulles via Chicago: arrives on time 69%
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06:10 ONT → 12:25 ORDUA 2171 · United · 4h 15m · 91% on time, 5.4% cancelled
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2h 07m layover in Chicago (ORD) · 45 min minimum on one ticket
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14:32 ORD → 17:30 IADUA 587 · United · 2h 00m · 73% on time, 0.4% cancelled
Total trip 8h 22m, scheduled departure to arrival (Dulles is 3 h ahead of Ontario). Times are local. Both flew on 0 of the last 56 days, too few to list among the best connections.
Makes the connection100%The first flight arrived more than 82 minutes late on 0% of the days it flew: too late for the 45-minute minimum connection on a 2h 07m layover.
Arrives on time69%First flight not cancelled (5.4% are) × connection made (100%) × second flight not cancelled (0.4% are) and within 15 minutes (73%).
Total trip8h 22mONT 06:10 to IAD 17:30, 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.