Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Philadelphia → Louisville via Houston: arrives on time 70%
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13:04 PHL → 15:35 IAHUA 2038 · United · 3h 31m · 87% on time, 0.6% cancelled
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1h 00m layover in Houston (IAH) · 45 min minimum on one ticket
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16:35 IAH → 20:01 SDFUA 4050 · United, flown by Mesa · 2h 26m · 84% on time, 2.7% cancelled
Total trip 6h 57m, scheduled departure to arrival. Times are local. Both flew on 55 of the last 56 days.
Makes the connection87%The first flight arrived more than 15 minutes late on 13% of the days it flew: too late for the 45-minute minimum connection on a 1h 00m layover.
Arrives on time70%First flight not cancelled (0.6% are) × connection made (87%) × second flight not cancelled (2.7% are) and within 15 minutes (84%).
Total trip6h 57mPHL 13:04 to SDF 20:01, 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.