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

Dulles → Houston via Dallas-Fort Worth: arrives on time 21%

  1. 19:31 IAD → 21:50 DFW
    AA 1904 · American · 3h 19m · 51% on time, 2.9% cancelled
  2. 57m layover in Dallas-Fort Worth (DFW) · 45 min minimum on one ticket
  3. 22:47 DFW → 23:58 IAH
    AA 1914 · American · 1h 11m · 45% on time, 3.3% cancelled

Total trip 5h 27m, scheduled departure to arrival (Houston is 1 h behind Dulles). Times are local. Both flew on 45 of the last 56 days.

Makes the connection50%The first flight arrived more than 12 minutes late on 50% of the days it flew: too late for the 45-minute minimum connection on a 57m layover.
Arrives on time21%First flight not cancelled (2.9% are) × connection made (50%) × second flight not cancelled (3.3% are) and within 15 minutes (45%).
Total trip5h 27mIAD 19:31 to IAH 23:58, layover included

Tight connection: often missed. The first flight is late enough to miss it on more than 1 day in 4.

Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.