The average train between Washington Dulles Airport (IAD) and Postal Square Building takes 1h 2m and the fastest train takes 57 min. The train runs at least 4 times per hour from Washington Dulles Airport (IAD) to Postal Square Building. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Trains run every 15 minutes between Washington Dulles Airport (IAD) and Postal Square Building. The earliest departure is at 5:00 AM in the morning, and the last departure from Washington Dulles Airport (IAD) is at 11:15 PM which arrives into Postal Square Building at 5:38 AM. All services require a transfer at Farragut West, Blue/Orange/Silver Line Track 1 Platform and take an average of 1h 2m. The schedules shown below are for the next available departures.

1h • 1 change

58 min • 1 change

1h 1m • 1 change

1h • 1 change
Want to know about travelling from Washington Dulles Airport (IAD) to Postal Square Building? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.
No, there is no direct train from Washington Dulles Airport (IAD) to Postal Square Building. However, there are services departing from Washington Dulles Airport (IAD) station and arriving at Postal Square Building station via Farragut West, Blue/Orange/Silver Line Track 1 Platform. The journey, including transfers, takes approximately 1h 2m.
Washington Dulles Airport (IAD) to Postal Square Building train services, operated by Washington Metropolitan Area Transit Authority, depart from Washington Dulles International Airport, Silver Line Center Platform station.
Washington Dulles Airport (IAD) to Postal Square Building train services, operated by Washington Metropolitan Area Transit Authority, arrive at Farragut West, Blue/Orange/Silver Line Track 1 Platform station.
The distance between Washington Dulles Airport (IAD) and Postal Square Building is 38.5 km. The road distance is 45 km.
Washington Metropolitan Area Transit Authority operates a subway from Washington Dulles International Airport, Silver Line Center Platform to Farragut West, Blue/Orange/Silver Line Track 1 Platform every 15 minutes. Tickets cost $2–3 and the journey takes 46 min.