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

New York → Ontario via Seattle: arrives on time 67%

  1. 13:00 JFK → 16:19 SEA
    AS 23 · Alaska · 6h 19m · 78% on time, 2.5% cancelled
  2. 1h 32m layover in Seattle (SEA) · 45 min minimum on one ticket
  3. 17:51 SEA → 20:32 ONT
    AS 592 · Alaska · 2h 41m · 75% on time, 0.0% cancelled

Total trip 10h 32m, scheduled departure to arrival (Ontario is 3 h behind New York). Times are local. Both flew on 41 of the last 56 days.

Makes the connection92%The first flight arrived more than 47 minutes late on 8% of the days it flew: too late for the 45-minute minimum connection on a 1h 32m layover.
Arrives on time67%First flight not cancelled (2.5% are) × connection made (92%) × second flight not cancelled (0.0% are) and within 15 minutes (75%).
Total trip10h 32mJFK 13:00 to ONT 20:32, 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.