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

Harrisburg → Chicago via Atlanta: arrives on time 68%

  1. 06:04 MDT → 08:05 ATL
    DL 1255 · Delta · 2h 01m · 91% on time, 3.2% cancelled
  2. 57m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 09:02 ATL → 10:13 ORD
    DL 1147 · Delta · 2h 11m · 80% on time, 2.8% cancelled

Total trip 5h 09m, scheduled departure to arrival (Chicago is 1 h behind Harrisburg). Times are local. Both flew on 55 of the last 56 days.

Makes the connection90%The first flight arrived more than 12 minutes late on 10% of the days it flew: too late for the 45-minute minimum connection on a 57m layover.
Arrives on time68%First flight not cancelled (3.2% are) × connection made (90%) × second flight not cancelled (2.8% are) and within 15 minutes (80%).
Total trip5h 09mMDT 06:04 to ORD 10:13, 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.