Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Louisville → Boston via Dulles: arrives on time 79%
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06:00 SDF → 07:35 IADUA 3438 · United, flown by Republic · 1h 35m · 93% on time, 1.4% cancelled
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2h 25m layover in Dulles (IAD) · 45 min minimum on one ticket
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10:00 IAD → 11:52 BOSUA 3552 · United, flown by Republic · 1h 52m · 85% on time, 3.7% cancelled
Total trip 5h 52m, scheduled departure to arrival. Times are local. Both flew on 27 of the last 56 days.
Makes the connection99%The first flight arrived more than 100 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 2h 25m layover.
Arrives on time79%First flight not cancelled (1.4% are) × connection made (99%) × second flight not cancelled (3.7% are) and within 15 minutes (85%).
Total trip5h 52mSDF 06:00 to BOS 11:52, 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.