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

Houston → Ontario via Seattle: arrives on time 83%

  1. 06:02 IAH → 08:40 SEA
    AS 453 · Alaska · 4h 38m · 88% on time, 0.9% cancelled
  2. 3h 13m layover in Seattle (SEA) · 90 min minimum on separate tickets
  3. 11:53 SEA → 14:39 ONT
    F9 2276 · Frontier · 2h 46m · 88% on time, 4.0% cancelled

Total trip 10h 37m, scheduled departure to arrival (Ontario is 2 h behind Houston). Times are local. Both flew on 55 of the last 56 days.

Makes the connection100%The first flight arrived more than 103 minutes late on <1% of the days it flew: too late for the 90-minute minimum connection on a 3h 13m layover.
Arrives on time83%First flight not cancelled (0.9% are) × connection made (100%) × second flight not cancelled (4.0% are) and within 15 minutes (88%).
Total trip10h 37mIAH 06:02 to ONT 14:39, 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.