Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Chicago → Ontario via Houston: arrives on time 75%
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14:05 ORD → 17:11 IAHUA 2062 · United · 3h 06m · 76% on time, 0.0% cancelled
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3h 20m layover in Houston (IAH) · 45 min minimum on one ticket
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20:31 IAH → 21:55 ONTUA 1563 · United · 3h 24m · 79% on time, 0.0% cancelled
Total trip 9h 50m, scheduled departure to arrival (Ontario is 2 h behind Chicago). Times are local. Both flew on 0 of the last 56 days, too few to list among the best connections.
Makes the connection95%The first flight arrived more than 155 minutes late on 5% of the days it flew: too late for the 45-minute minimum connection on a 3h 20m layover.
Arrives on time75%First flight not cancelled (0.0% are) × connection made (95%) × second flight not cancelled (0.0% are) and within 15 minutes (79%).
Total trip9h 50mORD 14:05 to ONT 21:55, 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.