Use Expedia to arrange your flight to Washington Dulles International Airport (IAD) airport or Gaithersburg, MD (GAI-Montgomery County Airpark) airport, and then choose from a variety of places to stay that will deliver the luxury you seek. Amenities are an important consideration when you plan a trip, so we make it easy to find what you need to make your stay special. If you want a posh hotel with a spa, an indoor pool or luxury bedding, Expedia can assist you in finding the best luxury hotel experience that Potomac Falls has to offer. Potomac Falls has some interesting things to see and do including Dulles Town Center and Dulles Sportsplex, so you might want to take in the local sights during your visit.