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

Ontario → Atlanta via Seattle: arrives on time 77%

  1. 06:20 ONT → 09:17 SEA
    DL 3816 · Delta, flown by SkyWest · 2h 57m · 94% on time, 0.0% cancelled
  2. 2h 39m layover in Seattle (SEA) · 45 min minimum on one ticket
  3. 11:56 SEA → 19:54 ATL
    DL 554 · Delta · 4h 58m · 78% on time, 0.0% cancelled

Total trip 10h 34m, scheduled departure to arrival (Atlanta is 3 h ahead of Ontario). Times are local. Both flew on 56 of the last 56 days.

Makes the connection99%The first flight arrived more than 114 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 2h 39m layover.
Arrives on time77%First flight not cancelled (0.0% are) × connection made (99%) × second flight not cancelled (0.0% are) and within 15 minutes (78%).
Total trip10h 34mONT 06:20 to ATL 19:54, 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.