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

Dulles → Houston via Denver: arrives on time 76%

  1. 08:15 IAD → 10:10 DEN
    UA 792 · United · 3h 55m · 95% on time, 0.0% cancelled
  2. 2h 20m layover in Denver (DEN) · 90 min minimum on separate tickets
  3. 12:30 DEN → 16:05 HOU
    WN 1544 · Southwest · 2h 35m · 79% on time, 0.0% cancelled

Total trip 8h 50m, scheduled departure to arrival (Houston is 1 h behind Dulles). Times are local. Both flew on 27 of the last 56 days.

Makes the connection97%The first flight arrived more than 50 minutes late on 3% of the days it flew: too late for the 90-minute minimum connection on a 2h 20m layover.
Arrives on time76%First flight not cancelled (0.0% are) × connection made (97%) × second flight not cancelled (0.0% are) and within 15 minutes (79%).
Total trip8h 50mIAD 08:15 to HOU 16:05, 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.