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

Detroit → Boston via Philadelphia: arrives on time 43%

  1. 14:53 DTW → 16:36 PHL
    DL 1391 · Delta · 1h 43m · 71% on time, 2.4% cancelled
  2. 59m layover in Philadelphia (PHL) · 45 min minimum on one ticket
  3. 17:35 PHL → 19:07 BOS
    DL 5706 · Delta, flown by Republic · 1h 32m · 67% on time, 6.6% cancelled

Total trip 4h 14m, scheduled departure to arrival. Times are local. Both flew on 55 of the last 56 days.

Makes the connection70%The first flight arrived more than 14 minutes late on 30% of the days it flew: too late for the 45-minute minimum connection on a 59m layover.
Arrives on time43%First flight not cancelled (2.4% are) × connection made (70%) × second flight not cancelled (6.6% are) and within 15 minutes (67%).
Total trip4h 14mDTW 14:53 to BOS 19:07, 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.