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

Las Vegas → St Louis via Chicago: arrives on time 90%

  1. 23:30 LAS → 05:11 ORD
    UA 2102 · United · 3h 41m · 92% on time, 0.3% cancelled
  2. 1h 54m layover in Chicago (ORD) · 90 min minimum on separate tickets
  3. 07:05 ORD → 08:31 STL +1 day
    AA 4104 · American, flown by Envoy · 1h 27m · 96% on time, 0.0% cancelled

Total trip 7h 02m, scheduled departure to arrival (St Louis is 2 h ahead of Las Vegas). Times are local. Both flew on 55 of the last 56 days.

Makes the connection94%The first flight arrived more than 24 minutes late on 6% of the days it flew: too late for the 90-minute minimum connection on a 1h 54m layover.
Arrives on time90%First flight not cancelled (0.3% are) × connection made (94%) × second flight not cancelled (0.0% are) and within 15 minutes (96%).
Total trip7h 02mLAS 23:30 to STL 08:31, 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.