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

Chicago → Columbus via Atlanta: arrives on time 71%

  1. 11:05 MDW → 14:01 ATL
    DL 1063 · Delta · 1h 56m · 90% on time, 2.7% cancelled
  2. 3h 24m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 17:25 ATL → 19:03 CMH
    DL 2786 · Delta · 1h 38m · 74% on time, 1.1% cancelled

Total trip 6h 58m, scheduled departure to arrival (Columbus is 1 h ahead of Chicago). Times are local. Both flew on 56 of the last 56 days.

Makes the connection99%The first flight arrived more than 159 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 3h 24m layover.
Arrives on time71%First flight not cancelled (2.7% are) × connection made (99%) × second flight not cancelled (1.1% are) and within 15 minutes (74%).
Total trip6h 58mMDW 11:05 to CMH 19:03, 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.