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

Grand Rapids → Chicago via Detroit: arrives on time 60%

  1. 10:34 GRR → 11:35 DTW
    DL 3500 · Delta, flown by SkyWest · 1h 01m · 81% on time, 0.0% cancelled
  2. 50m layover in Detroit (DTW) · 45 min minimum on one ticket
  3. 12:25 DTW → 12:46 MDW
    DL 4688 · Delta, flown by Endeavor · 1h 21m · 82% on time, 1.2% cancelled

Total trip 3h 12m, scheduled departure to arrival (Chicago is 1 h behind Grand Rapids). Times are local. Both flew on 56 of the last 56 days.

Makes the connection74%The first flight arrived more than 5 minutes late on 26% of the days it flew: too late for the 45-minute minimum connection on a 50m layover.
Arrives on time60%First flight not cancelled (0.0% are) × connection made (74%) × second flight not cancelled (1.2% are) and within 15 minutes (82%).
Total trip3h 12mGRR 10:34 to MDW 12:46, 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.