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

Denver → Ontario via Las Vegas: arrives on time 8%

  1. 20:35 DEN → 21:30 LAS
    WN 1566 · Southwest · 1h 55m · 44% on time, 2.0% cancelled
  2. 55m layover in Las Vegas (LAS) · 45 min minimum on one ticket
  3. 22:25 LAS → 23:32 ONT
    WN 2135 · Southwest · 1h 08m · 23% on time, 0.0% cancelled

Total trip 3h 58m, scheduled departure to arrival (Ontario is 1 h behind Denver). Times are local. Both flew on 24 of the last 56 days.

Makes the connection38%The first flight arrived more than 10 minutes late on 62% of the days it flew: too late for the 45-minute minimum connection on a 55m layover.
Arrives on time8%First flight not cancelled (2.0% are) × connection made (38%) × second flight not cancelled (0.0% are) and within 15 minutes (23%).
Total trip3h 58mDEN 20:35 to ONT 23:32, 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.