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

Chicago → Oakland via Portland: arrives on time 99%

  1. 09:00 ORD → 11:38 PDX
    UA 1994 · United · 4h 38m · 85% on time, 0.0% cancelled
  2. 3h 30m layover in Portland (PDX) · 90 min minimum on separate tickets
  3. 15:08 PDX → 16:55 OAK
    AS 2035 · Alaska, flown by Horizon · 1h 47m · 100% on time, 0.0% cancelled

Total trip 9h 55m, scheduled departure to arrival (Oakland is 2 h behind Chicago). Times are local. Both flew on 22 of the last 56 days.

Makes the connection99%The first flight arrived more than 120 minutes late on 1% of the days it flew: too late for the 90-minute minimum connection on a 3h 30m layover.
Arrives on time99%First flight not cancelled (0.0% are) × connection made (99%) × second flight not cancelled (0.0% are) and within 15 minutes (100%).
Total trip9h 55mORD 09:00 to OAK 16:55, 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.