Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Boston → Louisville via Dulles: arrives on time 84%
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05:45 BOS → 07:23 IADUA 1734 · United · 1h 38m · 97% on time, 2.3% cancelled
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1h 08m layover in Dulles (IAD) · 45 min minimum on one ticket
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08:31 IAD → 10:23 SDFUA 3526 · United, flown by Republic · 1h 52m · 91% on time, 2.8% cancelled
Total trip 4h 38m, scheduled departure to arrival. Times are local. Both flew on 56 of the last 56 days.
Makes the connection98%The first flight arrived more than 23 minutes late on 2% of the days it flew: too late for the 45-minute minimum connection on a 1h 08m layover.
Arrives on time84%First flight not cancelled (2.3% are) × connection made (98%) × second flight not cancelled (2.8% are) and within 15 minutes (91%).
Total trip4h 38mBOS 05:45 to SDF 10:23, 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.