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

Ontario → Dulles via Atlanta: arrives on time 64%

  1. 07:05 ONT → 14:23 ATL
    DL 761 · Delta · 4h 18m · 92% on time, 1.9% cancelled
  2. 2h 29m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 16:52 ATL → 18:42 IAD
    DL 2902 · Delta · 1h 50m · 71% on time, 5.5% cancelled

Total trip 8h 37m, scheduled departure to arrival (Dulles is 3 h ahead of Ontario). Times are local. Both flew on 39 of the last 56 days.

Makes the connection97%The first flight arrived more than 104 minutes late on 3% of the days it flew: too late for the 45-minute minimum connection on a 2h 29m layover.
Arrives on time64%First flight not cancelled (1.9% are) × connection made (97%) × second flight not cancelled (5.5% are) and within 15 minutes (71%).
Total trip8h 37mONT 07:05 to IAD 18:42, 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.