Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Miami → Hartford via Atlanta: arrives on time 77%
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07:10 MIA → 09:15 ATLDL 1211 · Delta · 2h 05m · 93% on time, 2.2% cancelled
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4h 39m layover in Atlanta (ATL) · 45 min minimum on one ticket
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13:54 ATL → 16:14 BDLDL 2739 · Delta · 2h 20m · 83% on time, 4.5% cancelled
Total trip 9h 04m, scheduled departure to arrival. Times are local. Both flew on 56 of the last 56 days.
Makes the connection99%The first flight arrived more than 234 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 4h 39m layover.
Arrives on time77%First flight not cancelled (2.2% are) × connection made (99%) × second flight not cancelled (4.5% are) and within 15 minutes (83%).
Total trip9h 04mMIA 07:10 to BDL 16:14, 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.