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

Chicago → Portland via Atlanta: arrives on time 79%

  1. 06:00 MDW → 08:55 ATL
    DL 1285 · Delta · 1h 55m · 90% on time, 2.7% cancelled
  2. 1h 25m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 10:20 ATL → 13:00 PWM
    DL 2479 · Delta · 2h 40m · 87% on time, 0.0% cancelled

Total trip 6h 00m, scheduled departure to arrival (Portland is 1 h ahead of Chicago). Times are local. Both flew on 56 of the last 56 days.

Makes the connection93%The first flight arrived more than 40 minutes late on 7% of the days it flew: too late for the 45-minute minimum connection on a 1h 25m layover.
Arrives on time79%First flight not cancelled (2.7% are) × connection made (93%) × second flight not cancelled (0.0% are) and within 15 minutes (87%).
Total trip6h 00mMDW 06:00 to PWM 13:00, 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.