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

Chicago → Grand Rapids via Detroit: arrives on time 50%

  1. 19:17 ORD → 21:52 DTW
    DL 1084 · Delta · 1h 35m · 69% on time, 7.8% cancelled
  2. 1h 03m layover in Detroit (DTW) · 45 min minimum on one ticket
  3. 22:55 DTW → 23:57 GRR
    DL 4880 · Delta, flown by Endeavor · 1h 02m · 79% on time, 2.8% cancelled

Total trip 3h 40m, scheduled departure to arrival (Grand Rapids is 1 h ahead of Chicago). Times are local. Both flew on 41 of the last 56 days.

Makes the connection70%The first flight arrived more than 18 minutes late on 30% of the days it flew: too late for the 45-minute minimum connection on a 1h 03m layover.
Arrives on time50%First flight not cancelled (7.8% are) × connection made (70%) × second flight not cancelled (2.8% are) and within 15 minutes (79%).
Total trip3h 40mORD 19:17 to GRR 23:57, 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.