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

Portland → Chicago via Atlanta: arrives on time 69%

  1. 06:35 PDX → 14:20 ATL
    DL 662 · Delta · 4h 45m · 95% on time, 1.1% cancelled
  2. 55m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 15:15 ATL → 16:15 MDW
    DL 1728 · Delta · 2h 00m · 77% on time, 2.1% cancelled

Total trip 7h 40m, scheduled departure to arrival (Chicago is 2 h ahead of Portland). Times are local. Both flew on 43 of the last 56 days.

Makes the connection93%The first flight arrived more than 10 minutes late on 7% of the days it flew: too late for the 45-minute minimum connection on a 55m layover.
Arrives on time69%First flight not cancelled (1.1% are) × connection made (93%) × second flight not cancelled (2.1% are) and within 15 minutes (77%).
Total trip7h 40mPDX 06:35 to MDW 16:15, 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.