Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Columbus → Dulles via Houston: arrives on time 55%
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11:43 CMH → 13:40 IAHUA 4065 · United, flown by Mesa · 2h 57m · 79% on time, 0.7% cancelled
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51m layover in Houston (IAH) · 45 min minimum on one ticket
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14:31 IAH → 18:50 IADUA 1478 · United · 3h 19m · 76% on time, 0.0% cancelled
Total trip 7h 07m, scheduled departure to arrival. Times are local. Both flew on 24 of the last 56 days.
Makes the connection73%The first flight arrived more than 6 minutes late on 27% of the days it flew: too late for the 45-minute minimum connection on a 51m layover.
Arrives on time55%First flight not cancelled (0.7% are) × connection made (73%) × second flight not cancelled (0.0% are) and within 15 minutes (76%).
Total trip7h 07mCMH 11:43 to IAD 18:50, 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.