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

Ontario → New York via Seattle: arrives on time 71%

  1. 06:20 ONT → 09:17 SEA
    DL 3816 · Delta, flown by SkyWest · 2h 57m · 94% on time, 0.0% cancelled
  2. 2h 23m layover in Seattle (SEA) · 45 min minimum on one ticket
  3. 11:40 SEA → 20:25 JFK
    DL 415 · Delta · 5h 45m · 74% on time, 2.8% cancelled

Total trip 11h 05m, scheduled departure to arrival (New York is 3 h ahead of Ontario). Times are local. Both flew on 56 of the last 56 days.

Makes the connection98%The first flight arrived more than 98 minutes late on 2% of the days it flew: too late for the 45-minute minimum connection on a 2h 23m layover.
Arrives on time71%First flight not cancelled (0.0% are) × connection made (98%) × second flight not cancelled (2.8% are) and within 15 minutes (74%).
Total trip11h 05mONT 06:20 to JFK 20:25, 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.