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

Chicago → Grand Rapids via Detroit: arrives on time 85%

  1. 13:26 MDW → 15:44 DTW
    DL 4688 · Delta, flown by Endeavor · 1h 18m · 81% on time, 1.2% cancelled
  2. 2h 16m layover in Detroit (DTW) · 45 min minimum on one ticket
  3. 18:00 DTW → 19:01 GRR
    DL 5800 · Delta, flown by Republic · 1h 01m · 93% on time, 0.0% cancelled

Total trip 4h 35m, scheduled departure to arrival (Grand Rapids is 1 h ahead of Chicago). Times are local. Both flew on 42 of the last 56 days.

Makes the connection93%The first flight arrived more than 91 minutes late on 7% of the days it flew: too late for the 45-minute minimum connection on a 2h 16m layover.
Arrives on time85%First flight not cancelled (1.2% are) × connection made (93%) × second flight not cancelled (0.0% are) and within 15 minutes (93%).
Total trip4h 35mMDW 13:26 to GRR 19:01, 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.