Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Boston → Louisville via Newark: arrives on time 80%
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06:25 BOS → 07:55 EWRDL 5764 · Delta, flown by Republic · 1h 30m · 94% on time, 4.0% cancelled
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2h 10m layover in Newark (EWR) · 90 min minimum on separate tickets
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10:05 EWR → 12:21 SDFUA 3421 · United, flown by Republic · 2h 16m · 87% on time, 1.4% cancelled
Total trip 5h 56m, scheduled departure to arrival. Times are local. Both flew on 48 of the last 56 days.
Makes the connection97%The first flight arrived more than 40 minutes late on 3% of the days it flew: too late for the 90-minute minimum connection on a 2h 10m layover.
Arrives on time80%First flight not cancelled (4.0% are) × connection made (97%) × second flight not cancelled (1.4% are) and within 15 minutes (87%).
Total trip5h 56mBOS 06:25 to SDF 12:21, 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.