Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Houston → Louisville via Dulles: arrives on time 54%
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12:13 IAH → 16:30 IADUA 2366 · United · 3h 17m · 82% on time, 0.3% cancelled
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55m layover in Dulles (IAD) · 45 min minimum on one ticket
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17:25 IAD → 19:18 SDFUA 3538 · United, flown by Republic · 1h 53m · 77% on time, 5.4% cancelled
Total trip 6h 05m, scheduled departure to arrival (Louisville is 1 h ahead of Houston). Times are local. Both flew on 37 of the last 56 days.
Makes the connection74%The first flight arrived more than 10 minutes late on 26% of the days it flew: too late for the 45-minute minimum connection on a 55m layover.
Arrives on time54%First flight not cancelled (0.3% are) × connection made (74%) × second flight not cancelled (5.4% are) and within 15 minutes (77%).
Total trip6h 05mIAH 12:13 to SDF 19:18, 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.