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

New York → Ontario via Dallas-Fort Worth: arrives on time 74%

  1. 09:30 LGA → 12:17 DFW
    DL 856 · Delta · 3h 47m · 82% on time, 3.8% cancelled
  2. 3h 18m layover in Dallas-Fort Worth (DFW) · 90 min minimum on separate tickets
  3. 15:35 DFW → 16:48 ONT
    F9 4689 · Frontier · 3h 13m · 79% on time, 1.0% cancelled

Total trip 10h 18m, scheduled departure to arrival (Ontario is 3 h behind New York). Times are local. Both flew on 48 of the last 56 days.

Makes the connection98%The first flight arrived more than 108 minutes late on 2% of the days it flew: too late for the 90-minute minimum connection on a 3h 18m layover.
Arrives on time74%First flight not cancelled (3.8% are) × connection made (98%) × second flight not cancelled (1.0% are) and within 15 minutes (79%).
Total trip10h 18mLGA 09:30 to ONT 16:48, 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.