Comfortable Accommodations MainStay Suites Washington Dulles Airport in Chantilly offers family rooms with air-conditioning, kitchenettes, and free WiFi. Each room includes a work desk, refrigerator, microwave, dishwasher, and TV. Facilities and Services Guests can enjoy a fitness center, elevator, 24-hour front desk, and free on-site private parking. Additional amenities include a continental breakfast with fresh pastries, free toiletries, and a tea and coffee maker. Prime Location Located 3.1 mi from Washington Dulles International Airport, the hotel is a 13-minute walk from Dulles Expo Conference Center. Nearby attractions include the National Air and Space Museum Steven F Udvar Hazy Center (3.7 mi) and Ellanor C. Lawrence Park (2.9 mi). Guests appreciate the convenient location and comfortable beds.