Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

Dallas → Ontario via Denver: arrives on time 69%

  1. 17:55 DAL → 19:25 DEN
    WN 1303 · Southwest · 2h 30m · 52% on time, 3.5% cancelled
  2. 3h 04m layover in Denver (DEN) · 90 min minimum on separate tickets
  3. 22:29 DEN → 23:49 ONT
    F9 1261 · Frontier · 2h 20m · 81% on time, 0.0% cancelled

Total trip 7h 54m, scheduled departure to arrival (Ontario is 2 h behind Dallas). Times are local. Both flew on 55 of the last 56 days.

Makes the connection88%The first flight arrived more than 94 minutes late on 12% of the days it flew: too late for the 90-minute minimum connection on a 3h 04m layover.
Arrives on time69%First flight not cancelled (3.5% are) × connection made (88%) × second flight not cancelled (0.0% are) and within 15 minutes (81%).
Total trip7h 54mDAL 17:55 to ONT 23:49, 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.