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

Philadelphia → Grand Rapids via Detroit: arrives on time 49%

  1. 17:22 PHL → 19:09 DTW
    DL 1391 · Delta · 1h 47m · 70% on time, 2.4% cancelled
  2. 51m layover in Detroit (DTW) · 45 min minimum on one ticket
  3. 20:00 DTW → 21:00 GRR
    DL 4081 · Delta, flown by SkyWest · 1h 00m · 80% on time, 0.0% cancelled

Total trip 3h 38m, scheduled departure to arrival. Times are local. Both flew on 55 of the last 56 days.

Makes the connection63%The first flight arrived more than 6 minutes late on 37% of the days it flew: too late for the 45-minute minimum connection on a 51m layover.
Arrives on time49%First flight not cancelled (2.4% are) × connection made (63%) × second flight not cancelled (0.0% are) and within 15 minutes (80%).
Total trip3h 38mPHL 17:22 to GRR 21:00, 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.