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

Ontario → Newark via Seattle: arrives on time 82%

  1. 17:26 ONT → 20:06 SEA
    AS 575 · Alaska · 2h 40m · 61% on time, 2.2% cancelled
  2. 2h 34m layover in Seattle (SEA) · 45 min minimum on one ticket
  3. 22:40 SEA → 06:59 EWR +1 day
    AS 314 · Alaska · 5h 19m · 86% on time, 0.5% cancelled

Total trip 10h 33m, scheduled departure to arrival (Newark is 3 h ahead of Ontario). Times are local. Both flew on 45 of the last 56 days.

Makes the connection98%The first flight arrived more than 109 minutes late on 2% of the days it flew: too late for the 45-minute minimum connection on a 2h 34m layover.
Arrives on time82%First flight not cancelled (2.2% are) × connection made (98%) × second flight not cancelled (0.5% are) and within 15 minutes (86%).
Total trip10h 33mONT 17:26 to EWR 06:59, 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.