Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Louisville → Boston via Washington: arrives on time 25%
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14:18 SDF → 15:59 DCAAA 4753 · American, flown by Republic · 1h 43m · 60% on time, 4.5% cancelled
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1h 01m layover in Washington (DCA) · 45 min minimum on one ticket
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17:00 DCA → 18:47 BOSAA 3207 · American · 1h 47m · 43% on time, 2.1% cancelled
Total trip 4h 29m, scheduled departure to arrival. Times are local. Both flew on 35 of the last 56 days.
Makes the connection61%The first flight arrived more than 16 minutes late on 39% of the days it flew: too late for the 45-minute minimum connection on a 1h 01m layover.
Arrives on time25%First flight not cancelled (4.5% are) × connection made (61%) × second flight not cancelled (2.1% are) and within 15 minutes (43%).
Total trip4h 29mSDF 14:18 to BOS 18:47, layover included
Tight connection: often missed. The first flight is late enough to miss it on more than 1 day in 4.
Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.