Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Miami → Boston via New York: arrives on time 45%
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12:51 MIA → 16:00 LGAAA 3229 · American · 3h 09m · 47% on time, 4.2% cancelled
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1h 59m layover in New York (LGA) · 45 min minimum on one ticket
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17:59 LGA → 19:23 BOSAA 4374 · American, flown by Republic · 1h 25m · 73% on time, 5.8% cancelled
Total trip 6h 33m, scheduled departure to arrival. Times are local. Both flew on 56 of the last 56 days.
Makes the connection67%The first flight arrived more than 74 minutes late on 33% of the days it flew: too late for the 45-minute minimum connection on a 1h 59m layover.
Arrives on time45%First flight not cancelled (4.2% are) × connection made (67%) × second flight not cancelled (5.8% are) and within 15 minutes (73%).
Total trip6h 33mMIA 12:51 to BOS 19:23, 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.