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

Salt Lake City → Dulles via Denver: arrives on time 60%

  1. 13:05 SLC → 14:51 DEN
    UA 4720 · United, flown by SkyWest · 1h 46m · 92% on time, 0.4% cancelled
  2. 49m layover in Denver (DEN) · 45 min minimum on one ticket
  3. 15:40 DEN → 21:11 IAD
    UA 421 · United · 3h 31m · 71% on time, 0.0% cancelled

Total trip 6h 06m, scheduled departure to arrival (Dulles is 2 h ahead of Salt Lake City). Times are local. Both flew on 55 of the last 56 days.

Makes the connection85%The first flight arrived more than 4 minutes late on 15% of the days it flew: too late for the 45-minute minimum connection on a 49m layover.
Arrives on time60%First flight not cancelled (0.4% are) × connection made (85%) × second flight not cancelled (0.0% are) and within 15 minutes (71%).
Total trip6h 06mSLC 13:05 to IAD 21:11, 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.