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

Ontario → New York via Atlanta: arrives on time 46%

  1. 11:50 ONT → 19:11 ATL
    DL 665 · Delta · 4h 21m · 85% on time, 1.6% cancelled
  2. 49m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 20:00 ATL → 22:27 LGA
    DL 490 · Delta · 2h 27m · 63% on time, 3.3% cancelled

Total trip 7h 37m, scheduled departure to arrival (New York is 3 h ahead of Ontario). Times are local. Both flew on 43 of the last 56 days.

Makes the connection76%The first flight arrived more than 4 minutes late on 24% of the days it flew: too late for the 45-minute minimum connection on a 49m layover.
Arrives on time46%First flight not cancelled (1.6% are) × connection made (76%) × second flight not cancelled (3.3% are) and within 15 minutes (63%).
Total trip7h 37mONT 11:50 to LGA 22:27, 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.