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

Washington → Ontario via Las Vegas: arrives on time 22%

  1. 16:25 DCA → 18:30 LAS
    WN 978 · Southwest · 5h 05m · 19% on time, 0.0% cancelled
  2. 3h 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 10h 08m, scheduled departure to arrival (Ontario is 3 h behind Washington). Times are local. Both flew on 24 of the last 56 days.

Makes the connection96%The first flight arrived more than 190 minutes late on 4% of the days it flew: too late for the 45-minute minimum connection on a 3h 55m layover.
Arrives on time22%First flight not cancelled (0.0% are) × connection made (96%) × second flight not cancelled (0.0% are) and within 15 minutes (23%).
Total trip10h 08mDCA 16:25 to ONT 23:32, 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.