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

Seattle → Dulles via Dallas-Fort Worth: arrives on time 27%

  1. 11:40 SEA → 17:50 DFW
    AA 767 · American · 4h 10m · 68% on time, 1.1% cancelled
  2. 54m layover in Dallas-Fort Worth (DFW) · 45 min minimum on one ticket
  3. 18:44 DFW → 22:46 IAD
    AA 1132 · American · 3h 08m · 47% on time, 2.8% cancelled

Total trip 8h 12m, scheduled departure to arrival (Dulles is 3 h ahead of Seattle). Times are local. Both flew on 56 of the last 56 days.

Makes the connection61%The first flight arrived more than 9 minutes late on 39% of the days it flew: too late for the 45-minute minimum connection on a 54m layover.
Arrives on time27%First flight not cancelled (1.1% are) × connection made (61%) × second flight not cancelled (2.8% are) and within 15 minutes (47%).
Total trip8h 12mSEA 11:40 to IAD 22:46, 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.