Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
New York → Boston via Miami: arrives on time 36%
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17:25 JFK → 20:59 MIAAA 688 · American · 3h 34m · 76% on time, 3.5% cancelled
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46m layover in Miami (MIA) · 45 min minimum on one ticket
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21:45 MIA → 00:59 BOS +1 dayAA 1054 · American · 3h 14m · 60% on time, 2.5% cancelled
Total trip 7h 34m, scheduled departure to arrival. Times are local. Both flew on 56 of the last 56 days.
Makes the connection65%The first flight arrived more than 1 minutes late on 35% of the days it flew: too late for the 45-minute minimum connection on a 46m layover.
Arrives on time36%First flight not cancelled (3.5% are) × connection made (65%) × second flight not cancelled (2.5% are) and within 15 minutes (60%).
Total trip7h 34mJFK 17:25 to BOS 00:59, 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.