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

Houston → Grand Rapids via Detroit: arrives on time 67%

  1. 05:20 IAH → 09:11 DTW
    DL 1389 · Delta · 2h 51m · 90% on time, 1.4% cancelled
  2. 3h 45m layover in Detroit (DTW) · 45 min minimum on one ticket
  3. 12:56 DTW → 13:55 GRR
    DL 5390 · Delta, flown by Endeavor · 59m · 69% on time, 0.0% cancelled

Total trip 7h 35m, scheduled departure to arrival (Grand Rapids is 1 h ahead of Houston). Times are local. Both flew on 41 of the last 56 days.

Makes the connection99%The first flight arrived more than 180 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 3h 45m layover.
Arrives on time67%First flight not cancelled (1.4% are) × connection made (99%) × second flight not cancelled (0.0% are) and within 15 minutes (69%).
Total trip7h 35mIAH 05:20 to GRR 13:55, 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.