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

Houston → Portland via Ontario: arrives on time 92%

  1. 06:10 IAH → 07:32 ONT
    F9 3131 · Frontier · 3h 31m · 78% on time, 0.5% cancelled
  2. 3h 22m layover in Ontario (ONT) · 90 min minimum on separate tickets
  3. 10:54 ONT → 13:09 PDX
    AS 1699 · Alaska · 2h 15m · 96% on time, 1.9% cancelled

Total trip 8h 59m, scheduled departure to arrival (Portland is 2 h behind Houston). Times are local. Both flew on 52 of the last 56 days.

Makes the connection98%The first flight arrived more than 112 minutes late on 2% of the days it flew: too late for the 90-minute minimum connection on a 3h 22m layover.
Arrives on time92%First flight not cancelled (0.5% are) × connection made (98%) × second flight not cancelled (1.9% are) and within 15 minutes (96%).
Total trip8h 59mIAH 06:10 to PDX 13:09, 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.