Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Boston → Baltimore via Houston: arrives on time 79%
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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 41m layover in Houston (IAH) · 45 min minimum on one ticket
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12:16 IAH → 16:30 BWIUA 1720 · United · 3h 14m · 81% on time, 0.0% cancelled
Total trip 9h 05m, scheduled departure to arrival. Times are local. Both flew on 56 of the last 56 days.
Makes the connection99%The first flight arrived more than 56 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 1h 41m layover.
Arrives on time79%First flight not cancelled (1.9% are) × connection made (99%) × second flight not cancelled (0.0% are) and within 15 minutes (81%).
Total trip9h 05mBOS 07:25 to BWI 16:30, 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.