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

Ontario → Fort Lauderdale via Atlanta: arrives on time 48%

  1. 11:50 ONT → 19:11 ATL
    DL 665 · Delta · 4h 21m · 85% on time, 1.6% cancelled
  2. 47m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 19:58 ATL → 21:55 FLL
    DL 1489 · Delta · 1h 57m · 67% on time, 0.8% cancelled

Total trip 7h 05m, scheduled departure to arrival (Fort Lauderdale is 3 h ahead of Ontario). Times are local. Both flew on 54 of the last 56 days.

Makes the connection74%The first flight arrived more than 2 minutes late on 26% of the days it flew: too late for the 45-minute minimum connection on a 47m layover.
Arrives on time48%First flight not cancelled (1.6% are) × connection made (74%) × second flight not cancelled (0.8% are) and within 15 minutes (67%).
Total trip7h 05mONT 11:50 to FLL 21:55, layover included

Tight connection: often missed. The first flight is late enough to miss it on more than 1 day in 4.

Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.