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

Ontario → Baltimore via Atlanta: arrives on time 74%

  1. 11:50 ONT → 19:11 ATL
    DL 665 · Delta · 4h 21m · 85% on time, 1.6% cancelled
  2. 3h 34m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 22:45 ATL → 00:40 BWI +1 day
    DL 2590 · Delta · 1h 55m · 78% on time, 3.0% cancelled

Total trip 9h 50m, scheduled departure to arrival (Baltimore 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 169 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 3h 34m layover.
Arrives on time74%First flight not cancelled (1.6% are) × connection made (99%) × second flight not cancelled (3.0% are) and within 15 minutes (78%).
Total trip9h 50mONT 11:50 to BWI 00:40, 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.