tailodds FORECAST
Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

Miami → Boston via Atlanta: arrives on time 54%

  1. 19:16 MIA → 21:34 ATL
    DL 1323 · Delta · 2h 18m · 59% on time, 2.4% cancelled
  2. 1h 16m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 22:50 ATL → 01:31 BOS +1 day
    DL 865 · Delta · 2h 41m · 80% on time, 2.8% cancelled

Total trip 6h 15m, scheduled departure to arrival. Times are local. Both flew on 55 of the last 56 days.

Makes the connection71%The first flight arrived more than 31 minutes late on 29% of the days it flew: too late for the 45-minute minimum connection on a 1h 16m layover.
Arrives on time54%First flight not cancelled (2.4% are) × connection made (71%) × second flight not cancelled (2.8% are) and within 15 minutes (80%).
Total trip6h 15mMIA 19:16 to BOS 01:31, 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.