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

Dallas → Ontario via Atlanta: arrives on time 53%

  1. 15:59 DAL → 19:14 ATL
    DL 512 · Delta · 2h 15m · 72% on time, 1.4% cancelled
  2. 1h 11m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 20:25 ATL → 21:50 ONT
    DL 779 · Delta · 4h 25m · 71% on time, 1.6% cancelled

Total trip 7h 51m, scheduled departure to arrival (Ontario is 2 h behind Dallas). Times are local. Both flew on 42 of the last 56 days.

Makes the connection76%The first flight arrived more than 26 minutes late on 24% of the days it flew: too late for the 45-minute minimum connection on a 1h 11m layover.
Arrives on time53%First flight not cancelled (1.4% are) × connection made (76%) × second flight not cancelled (1.6% are) and within 15 minutes (71%).
Total trip7h 51mDAL 15:59 to ONT 21:50, 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.