Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Miami → Denver via New York: arrives on time 47%
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15:25 MIA → 18:54 JFKDL 1514 · Delta · 3h 29m · 73% on time, 4.5% cancelled
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56m layover in New York (JFK) · 45 min minimum on one ticket
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19:50 JFK → 22:45 DENDL 424 · Delta · 4h 55m · 70% on time, 2.1% cancelled
Total trip 9h 20m, scheduled departure to arrival (Denver is 2 h behind Miami). Times are local. Both flew on 56 of the last 56 days.
Makes the connection72%The first flight arrived more than 11 minutes late on 28% of the days it flew: too late for the 45-minute minimum connection on a 56m layover.
Arrives on time47%First flight not cancelled (4.5% are) × connection made (72%) × second flight not cancelled (2.1% are) and within 15 minutes (70%).
Total trip9h 20mMIA 15:25 to DEN 22:45, 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.