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

Ontario → Miami via Salt Lake City: arrives on time 87%

  1. 17:21 ONT → 20:17 SLC
    DL 4443 · Delta, flown by SkyWest · 1h 56m · 87% on time, 0.0% cancelled
  2. 2h 43m layover in Salt Lake City (SLC) · 45 min minimum on one ticket
  3. 23:00 SLC → 05:42 MIA +1 day
    DL 2040 · Delta · 4h 42m · 91% on time, 0.5% cancelled

Total trip 9h 21m, scheduled departure to arrival (Miami is 3 h ahead of Ontario). Times are local. Both flew on 55 of the last 56 days.

Makes the connection96%The first flight arrived more than 118 minutes late on 4% of the days it flew: too late for the 45-minute minimum connection on a 2h 43m layover.
Arrives on time87%First flight not cancelled (0.0% are) × connection made (96%) × second flight not cancelled (0.5% are) and within 15 minutes (91%).
Total trip9h 21mONT 17:21 to MIA 05:42, 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.