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

Dulles → Phoenix via Denver: arrives on time 70%

  1. 12:48 IAD → 14:42 DEN
    UA 1587 · United · 3h 54m · 92% on time, 0.3% cancelled
  2. 53m layover in Denver (DEN) · 45 min minimum on one ticket
  3. 15:35 DEN → 16:35 PHX
    UA 1254 · United · 2h 00m · 82% on time, 0.0% cancelled

Total trip 6h 47m, scheduled departure to arrival (Phoenix is 3 h behind Dulles). Times are local. Both flew on 55 of the last 56 days.

Makes the connection86%The first flight arrived more than 8 minutes late on 14% of the days it flew: too late for the 45-minute minimum connection on a 53m layover.
Arrives on time70%First flight not cancelled (0.3% are) × connection made (86%) × second flight not cancelled (0.0% are) and within 15 minutes (82%).
Total trip6h 47mIAD 12:48 to PHX 16:35, 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.