tailodds FORECAST
Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

Chicago → Harrisburg via Atlanta: arrives on time 75%

  1. 09:07 ORD → 12:22 ATL
    UA 530 · United · 2h 15m · 82% on time, 1.6% cancelled
  2. 3h 19m layover in Atlanta (ATL) · 90 min minimum on separate tickets
  3. 15:41 ATL → 17:37 MDT
    DL 2857 · Delta · 1h 56m · 79% on time, 2.4% cancelled

Total trip 7h 30m, scheduled departure to arrival (Harrisburg is 1 h ahead of Chicago). Times are local. Both flew on 48 of the last 56 days.

Makes the connection98%The first flight arrived more than 109 minutes late on 2% of the days it flew: too late for the 90-minute minimum connection on a 3h 19m layover.
Arrives on time75%First flight not cancelled (1.6% are) × connection made (98%) × second flight not cancelled (2.4% are) and within 15 minutes (79%).
Total trip7h 30mORD 09:07 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.