Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Chicago → Louisville via Dulles: arrives on time 81%
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06:30 ORD → 09:24 IADUA 1689 · United · 1h 54m · 100% on time, 1.4% cancelled
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3h 24m layover in Dulles (IAD) · 45 min minimum on one ticket
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12:48 IAD → 14:37 SDFUA 3980 · United, flown by Mesa · 1h 49m · 82% on time, 0.4% cancelled
Total trip 7h 07m, scheduled departure to arrival (Louisville is 1 h ahead of Chicago). Times are local. Both flew on 56 of the last 56 days.
Makes the connection100%The first flight arrived more than 159 minutes late on 0% of the days it flew: too late for the 45-minute minimum connection on a 3h 24m layover.
Arrives on time81%First flight not cancelled (1.4% are) × connection made (100%) × second flight not cancelled (0.4% are) and within 15 minutes (82%).
Total trip7h 07mORD 06:30 to SDF 14:37, 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.