tailodds FORECAST
Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

Atlanta → Ontario via Seattle: arrives on time 82%

  1. 08:54 ATL → 11:20 SEA
    AS 348 · Alaska · 5h 26m · 69% on time, 1.6% cancelled
  2. 3h 15m layover in Seattle (SEA) · 90 min minimum on separate tickets
  3. 14:35 SEA → 17:19 ONT
    DL 4031 · Delta, flown by SkyWest · 2h 44m · 88% on time, 0.3% cancelled

Total trip 11h 25m, scheduled departure to arrival (Ontario is 3 h behind Atlanta). Times are local. Both flew on 51 of the last 56 days.

Makes the connection95%The first flight arrived more than 105 minutes late on 5% of the days it flew: too late for the 90-minute minimum connection on a 3h 15m layover.
Arrives on time82%First flight not cancelled (1.6% are) × connection made (95%) × second flight not cancelled (0.3% are) and within 15 minutes (88%).
Total trip11h 25mATL 08:54 to ONT 17:19, 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.