Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Boston → Chicago via Houston: arrives on time 64%
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07:25 BOS → 10:35 IAHUA 226 · United · 4h 10m · 94% on time, 1.9% cancelled
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1h 20m layover in Houston (IAH) · 45 min minimum on one ticket
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11:55 IAH → 14:51 ORDUA 2827 · United · 2h 56m · 67% on time, 1.4% cancelled
Total trip 8h 26m, scheduled departure to arrival (Chicago is 1 h behind Boston). Times are local. Both flew on 56 of the last 56 days.
Makes the connection98%The first flight arrived more than 35 minutes late on 2% of the days it flew: too late for the 45-minute minimum connection on a 1h 20m layover.
Arrives on time64%First flight not cancelled (1.9% are) × connection made (98%) × second flight not cancelled (1.4% are) and within 15 minutes (67%).
Total trip8h 26mBOS 07:25 to ORD 14:51, 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.