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

Chicago → Portland via Houston: arrives on time 85%

  1. 05:30 ORD → 08:18 IAH
    UA 2310 · United · 2h 48m · 93% on time, 0.0% cancelled
  2. 1h 12m layover in Houston (IAH) · 45 min minimum on one ticket
  3. 09:30 IAH → 11:56 PDX
    UA 740 · United · 4h 26m · 86% on time, 0.0% cancelled

Total trip 8h 26m, scheduled departure to arrival (Portland is 2 h behind Chicago). Times are local. Both flew on 56 of the last 56 days.

Makes the connection99%The first flight arrived more than 27 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 1h 12m layover.
Arrives on time85%First flight not cancelled (0.0% are) × connection made (99%) × second flight not cancelled (0.0% are) and within 15 minutes (86%).
Total trip8h 26mORD 05:30 to PDX 11:56, 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.