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

Dulles → Columbus via Atlanta: arrives on time 83%

  1. 06:00 IAD → 07:46 ATL
    DL 2127 · Delta · 1h 46m · 90% on time, 2.6% cancelled
  2. 2h 24m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 10:10 ATL → 11:48 CMH
    DL 1522 · Delta · 1h 38m · 90% on time, 1.7% cancelled

Total trip 5h 48m, scheduled departure to arrival. Times are local. Both flew on 50 of the last 56 days.

Makes the connection97%The first flight arrived more than 99 minutes late on 3% of the days it flew: too late for the 45-minute minimum connection on a 2h 24m layover.
Arrives on time83%First flight not cancelled (2.6% are) × connection made (97%) × second flight not cancelled (1.7% are) and within 15 minutes (90%).
Total trip5h 48mIAD 06:00 to CMH 11:48, 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.