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

Baltimore → Ontario via Denver: arrives on time 59%

  1. 16:23 BWI → 18:18 DEN
    UA 2012 · United · 3h 55m · 79% on time, 0.3% cancelled
  2. 1h 02m layover in Denver (DEN) · 45 min minimum on one ticket
  3. 19:20 DEN → 20:42 ONT
    UA 2028 · United · 2h 22m · 75% on time, 0.0% cancelled

Total trip 7h 19m, scheduled departure to arrival (Ontario is 3 h behind Baltimore). Times are local. Both flew on 55 of the last 56 days.

Makes the connection80%The first flight arrived more than 17 minutes late on 20% of the days it flew: too late for the 45-minute minimum connection on a 1h 02m layover.
Arrives on time59%First flight not cancelled (0.3% are) × connection made (80%) × second flight not cancelled (0.0% are) and within 15 minutes (75%).
Total trip7h 19mBWI 16:23 to ONT 20:42, 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.