tailodds FORECAST
Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

Ontario → Dulles via Las Vegas: arrives on time 87%

  1. 05:30 ONT → 06:35 LAS
    WN 3150 · Southwest · 1h 05m · 97% on time, 0.0% cancelled
  2. 2h 13m layover in Las Vegas (LAS) · 90 min minimum on separate tickets
  3. 08:48 LAS → 16:24 IAD
    UA 1140 · United · 4h 36m · 87% on time, 0.0% cancelled

Total trip 7h 54m, scheduled departure to arrival (Dulles is 3 h ahead of Ontario). Times are local. Both flew on 56 of the last 56 days.

Makes the connection99%The first flight arrived more than 43 minutes late on 1% of the days it flew: too late for the 90-minute minimum connection on a 2h 13m layover.
Arrives on time87%First flight not cancelled (0.0% are) × connection made (99%) × second flight not cancelled (0.0% are) and within 15 minutes (87%).
Total trip7h 54mONT 05:30 to IAD 16:24, 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.