Guests staying at Washington Dulles Airport Marriott enjoy an indoor pool, a 24-hour gym, and free WiFi in public areas. If you drive, self parking is USD 10 per night, or you can take advantage of the free airport shuttle (available 24 hours). The 24-hour front desk has staff standing by to help with concierge services, access to locker space, and securing valuables. Additional amenities include conference space, a business center, and coffee/tea in a common area.