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

Denver → Ontario via Salt Lake City: arrives on time 77%

  1. 05:40 DEN → 07:13 SLC
    DL 2544 · Delta · 1h 33m · 87% on time, 0.4% cancelled
  2. 47m layover in Salt Lake City (SLC) · 45 min minimum on one ticket
  3. 08:00 SLC → 08:47 ONT
    DL 1302 · Delta · 1h 47m · 97% on time, 1.5% cancelled

Total trip 4h 07m, scheduled departure to arrival (Ontario is 1 h behind Denver). Times are local. Both flew on 41 of the last 56 days.

Makes the connection81%The first flight arrived more than 2 minutes late on 19% of the days it flew: too late for the 45-minute minimum connection on a 47m layover.
Arrives on time77%First flight not cancelled (0.4% are) × connection made (81%) × second flight not cancelled (1.5% are) and within 15 minutes (97%).
Total trip4h 07mDEN 05:40 to ONT 08:47, 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.