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

Baltimore → Ontario via Atlanta: arrives on time 40%

  1. 14:10 BWI → 16:08 ATL
    DL 2711 · Delta · 1h 58m · 85% on time, 1.3% cancelled
  2. 51m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 16:59 ATL → 18:30 ONT
    DL 2891 · Delta · 4h 31m · 50% on time, 0.0% cancelled

Total trip 7h 20m, scheduled departure to arrival (Ontario is 3 h behind Baltimore). Times are local. Both flew on 54 of the last 56 days.

Makes the connection80%The first flight arrived more than 6 minutes late on 20% of the days it flew: too late for the 45-minute minimum connection on a 51m layover.
Arrives on time40%First flight not cancelled (1.3% are) × connection made (80%) × second flight not cancelled (0.0% are) and within 15 minutes (50%).
Total trip7h 20mBWI 14:10 to ONT 18:30, 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.