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

Chicago → Las Vegas via Portland: arrives on time 83%

  1. 09:00 ORD → 11:38 PDX
    UA 1994 · United · 4h 38m · 85% on time, 0.0% cancelled
  2. 3h 08m layover in Portland (PDX) · 90 min minimum on separate tickets
  3. 14:46 PDX → 17:06 LAS
    AS 778 · Alaska · 2h 20m · 84% on time, 0.0% cancelled

Total trip 10h 06m, scheduled departure to arrival (Las Vegas is 2 h behind Chicago). Times are local. Both flew on 49 of the last 56 days.

Makes the connection98%The first flight arrived more than 98 minutes late on 2% of the days it flew: too late for the 90-minute minimum connection on a 3h 08m layover.
Arrives on time83%First flight not cancelled (0.0% are) × connection made (98%) × second flight not cancelled (0.0% are) and within 15 minutes (84%).
Total trip10h 06mORD 09:00 to LAS 17:06, 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.