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

Ontario → Denver via Salt Lake City: arrives on time 80%

  1. 09:40 ONT → 12:28 SLC
    DL 1302 · Delta · 1h 48m · 98% on time, 1.5% cancelled
  2. 52m layover in Salt Lake City (SLC) · 45 min minimum on one ticket
  3. 13:20 SLC → 14:56 DEN
    DL 1623 · Delta · 1h 36m · 85% on time, 0.6% cancelled

Total trip 4h 16m, scheduled departure to arrival (Denver is 1 h ahead of Ontario). Times are local. Both flew on 41 of the last 56 days.

Makes the connection96%The first flight arrived more than 7 minutes late on 4% of the days it flew: too late for the 45-minute minimum connection on a 52m layover.
Arrives on time80%First flight not cancelled (1.5% are) × connection made (96%) × second flight not cancelled (0.6% are) and within 15 minutes (85%).
Total trip4h 16mONT 09:40 to DEN 14:56, 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.