Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Houston → Louisville via Chicago: arrives on time 80%
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09:35 IAH → 12:29 ORDUA 2124 · United · 2h 54m · 86% on time, 0.3% cancelled
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3h 33m layover in Chicago (ORD) · 90 min minimum on separate tickets
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16:02 ORD → 18:36 SDFAA 4668 · American, flown by Republic · 1h 36m · 86% on time, 5.7% cancelled
Total trip 8h 03m, scheduled departure to arrival (Louisville is 1 h ahead of Houston). Times are local. Both flew on 54 of the last 56 days.
Makes the connection99%The first flight arrived more than 123 minutes late on 1% of the days it flew: too late for the 90-minute minimum connection on a 3h 33m layover.
Arrives on time80%First flight not cancelled (0.3% are) × connection made (99%) × second flight not cancelled (5.7% are) and within 15 minutes (86%).
Total trip8h 03mIAH 09:35 to SDF 18:36, 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.