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

Miami → Ontario via Salt Lake City: arrives on time 81%

  1. 07:00 MIA → 10:04 SLC
    DL 2021 · Delta · 5h 04m · 80% on time, 0.5% cancelled
  2. 1h 15m layover in Salt Lake City (SLC) · 45 min minimum on one ticket
  3. 11:19 SLC → 12:10 ONT
    DL 3172 · Delta · 1h 51m · 91% on time, 0.0% cancelled

Total trip 8h 10m, scheduled departure to arrival (Ontario is 3 h behind Miami). Times are local. Both flew on 55 of the last 56 days.

Makes the connection89%The first flight arrived more than 30 minutes late on 11% of the days it flew: too late for the 45-minute minimum connection on a 1h 15m layover.
Arrives on time81%First flight not cancelled (0.5% are) × connection made (89%) × second flight not cancelled (0.0% are) and within 15 minutes (91%).
Total trip8h 10mMIA 07:00 to ONT 12:10, 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.