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

Chicago → Billings via Portland: arrives on time 93%

  1. 07:00 ORD → 09:34 PDX
    UA 2300 · United · 4h 34m · 90% on time, 0.0% cancelled
  2. 2h 39m layover in Portland (PDX) · 90 min minimum on separate tickets
  3. 12:13 PDX → 15:03 BIL
    AS 2368 · Alaska, flown by Horizon · 1h 50m · 96% on time, 1.9% cancelled

Total trip 9h 03m, scheduled departure to arrival (Billings is 1 h behind Chicago). Times are local. Both flew on 52 of the last 56 days.

Makes the connection99%The first flight arrived more than 69 minutes late on 1% of the days it flew: too late for the 90-minute minimum connection on a 2h 39m layover.
Arrives on time93%First flight not cancelled (0.0% are) × connection made (99%) × second flight not cancelled (1.9% are) and within 15 minutes (96%).
Total trip9h 03mORD 07:00 to BIL 15:03, 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.