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

Chicago → Harrisburg via Atlanta: arrives on time 75%

  1. 09:45 ORD → 12:51 ATL
    DL 1178 · Delta · 2h 06m · 87% on time, 2.3% cancelled
  2. 2h 50m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 15:41 ATL → 17:37 MDT
    DL 2857 · Delta · 1h 56m · 79% on time, 2.4% cancelled

Total trip 6h 52m, scheduled departure to arrival (Harrisburg is 1 h ahead of Chicago). Times are local. Both flew on 55 of the last 56 days.

Makes the connection99%The first flight arrived more than 125 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 2h 50m layover.
Arrives on time75%First flight not cancelled (2.3% are) × connection made (99%) × second flight not cancelled (2.4% are) and within 15 minutes (79%).
Total trip6h 52mORD 09:45 to MDT 17:37, 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.