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

Ontario → Chicago via Atlanta: arrives on time 84%

  1. 22:00 ONT → 05:18 ATL
    DL 2892 · Delta · 4h 18m · 97% on time, 2.5% cancelled
  2. 2h 07m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 07:25 ATL → 08:35 ORD +1 day
    DL 1178 · Delta · 2h 10m · 88% on time, 2.4% cancelled

Total trip 8h 35m, scheduled departure to arrival (Chicago is 2 h ahead of Ontario). Times are local. Both flew on 29 of the last 56 days.

Makes the connection100%The first flight arrived more than 82 minutes late on 0% of the days it flew: too late for the 45-minute minimum connection on a 2h 07m layover.
Arrives on time84%First flight not cancelled (2.5% are) × connection made (100%) × second flight not cancelled (2.4% are) and within 15 minutes (88%).
Total trip8h 35mONT 22:00 to ORD 08:35, 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.