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

Dulles → Las Vegas via Denver: arrives on time 74%

  1. 12:48 IAD → 14:42 DEN
    UA 1587 · United · 3h 54m · 92% on time, 0.3% cancelled
  2. 1h 18m layover in Denver (DEN) · 45 min minimum on one ticket
  3. 16:00 DEN → 17:03 LAS
    UA 716 · United · 2h 03m · 78% on time, 0.0% cancelled

Total trip 7h 15m, scheduled departure to arrival (Las Vegas is 3 h behind Dulles). Times are local. Both flew on 36 of the last 56 days.

Makes the connection94%The first flight arrived more than 33 minutes late on 6% of the days it flew: too late for the 45-minute minimum connection on a 1h 18m layover.
Arrives on time74%First flight not cancelled (0.3% are) × connection made (94%) × second flight not cancelled (0.0% are) and within 15 minutes (78%).
Total trip7h 15mIAD 12:48 to LAS 17:03, 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.