Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Dallas → Miami via Atlanta: arrives on time 64%
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15:59 DAL → 19:14 ATLDL 512 · Delta · 2h 15m · 72% on time, 1.4% cancelled
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3h 35m layover in Atlanta (ATL) · 45 min minimum on one ticket
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22:49 ATL → 00:51 MIA +1 dayDL 1589 · Delta · 2h 02m · 69% on time, 3.4% cancelled
Total trip 7h 52m, scheduled departure to arrival (Miami is 1 h ahead of Dallas). Times are local. Both flew on 56 of the last 56 days.
Makes the connection97%The first flight arrived more than 170 minutes late on 3% of the days it flew: too late for the 45-minute minimum connection on a 3h 35m layover.
Arrives on time64%First flight not cancelled (1.4% are) × connection made (97%) × second flight not cancelled (3.4% are) and within 15 minutes (69%).
Total trip7h 52mDAL 15:59 to MIA 00:51, 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.