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

Dulles → Columbus via Detroit: arrives on time 83%

  1. 17:29 IAD → 19:07 DTW
    DL 1787 · Delta · 1h 38m · 76% on time, 3.8% cancelled
  2. 3h 43m layover in Detroit (DTW) · 45 min minimum on one ticket
  3. 22:50 DTW → 23:56 CMH
    DL 5634 · Delta, flown by Republic · 1h 06m · 90% on time, 0.0% cancelled

Total trip 6h 27m, scheduled departure to arrival. Times are local. Both flew on 41 of the last 56 days.

Makes the connection96%The first flight arrived more than 178 minutes late on 4% of the days it flew: too late for the 45-minute minimum connection on a 3h 43m layover.
Arrives on time83%First flight not cancelled (3.8% are) × connection made (96%) × second flight not cancelled (0.0% are) and within 15 minutes (90%).
Total trip6h 27mIAD 17:29 to CMH 23:56, 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.