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

Houston → Dulles via Phoenix: arrives on time 85%

  1. 06:20 HOU → 06:55 PHX
    WN 2062 · Southwest · 2h 35m · 93% on time, 2.4% cancelled
  2. 1h 55m layover in Phoenix (PHX) · 90 min minimum on separate tickets
  3. 08:50 PHX → 16:17 IAD
    UA 1873 · United · 4h 27m · 92% on time, 0.6% cancelled

Total trip 8h 57m, scheduled departure to arrival (Dulles is 1 h ahead of Houston). Times are local. Both flew on 40 of the last 56 days.

Makes the connection95%The first flight arrived more than 25 minutes late on 5% of the days it flew: too late for the 90-minute minimum connection on a 1h 55m layover.
Arrives on time85%First flight not cancelled (2.4% are) × connection made (95%) × second flight not cancelled (0.6% are) and within 15 minutes (92%).
Total trip8h 57mHOU 06:20 to IAD 16:17, 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.