tailodds FORECAST
Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

Grand Rapids → Chicago via Detroit: arrives on time 75%

  1. 05:30 GRR → 06:30 DTW
    DL 4885 · Delta, flown by Endeavor · 1h 00m · 85% on time, 1.2% cancelled
  2. 2h 10m layover in Detroit (DTW) · 90 min minimum on separate tickets
  3. 08:40 DTW → 08:55 MDW
    WN 1781 · Southwest · 1h 15m · 86% on time, 2.0% cancelled

Total trip 4h 25m, scheduled departure to arrival (Chicago is 1 h behind Grand Rapids). Times are local. Both flew on 48 of the last 56 days.

Makes the connection91%The first flight arrived more than 40 minutes late on 9% of the days it flew: too late for the 90-minute minimum connection on a 2h 10m layover.
Arrives on time75%First flight not cancelled (1.2% are) × connection made (91%) × second flight not cancelled (2.0% are) and within 15 minutes (86%).
Total trip4h 25mGRR 05:30 to MDW 08:55, 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.