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

Atlanta → Portland via Chicago: arrives on time 46%

  1. 15:30 ATL → 16:57 ORD
    UA 516 · United · 2h 27m · 74% on time, 1.1% cancelled
  2. 1h 11m layover in Chicago (ORD) · 45 min minimum on one ticket
  3. 18:08 ORD → 21:41 PWM
    UA 1401 · United · 2h 33m · 59% on time, 1.4% cancelled

Total trip 6h 11m, scheduled departure to arrival. Times are local. Both flew on 55 of the last 56 days.

Makes the connection79%The first flight arrived more than 26 minutes late on 21% of the days it flew: too late for the 45-minute minimum connection on a 1h 11m layover.
Arrives on time46%First flight not cancelled (1.1% are) × connection made (79%) × second flight not cancelled (1.4% are) and within 15 minutes (59%).
Total trip6h 11mATL 15:30 to PWM 21:41, 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.