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

San Jose → Ontario via Seattle: arrives on time 52%

  1. 17:28 SJC → 19:39 SEA
    AS 1413 · Alaska · 2h 11m · 84% on time, 0.0% cancelled
  2. 54m layover in Seattle (SEA) · 45 min minimum on one ticket
  3. 20:33 SEA → 23:11 ONT
    AS 489 · Alaska · 2h 38m · 71% on time, 0.5% cancelled

Total trip 5h 43m, scheduled departure to arrival. Times are local. Both flew on 32 of the last 56 days.

Makes the connection74%The first flight arrived more than 9 minutes late on 26% of the days it flew: too late for the 45-minute minimum connection on a 54m layover.
Arrives on time52%First flight not cancelled (0.0% are) × connection made (74%) × second flight not cancelled (0.5% are) and within 15 minutes (71%).
Total trip5h 43mSJC 17:28 to ONT 23:11, layover included

Tight connection: often missed. The first flight is late enough to miss it on more than 1 day in 4.

Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.