Discount Hotel Specials Arlington Virginia. Come spend time in Washington DC this winter at our great new rates! Save 15% off when booking 7 days in advance. This offer is valid for a limited time so call 866-400-8064 to make your reservation today! Discover an exceptional lodging experience at the Comfort Inn Pentagon in Arlington, Virginia. Whether you're traveling to the Washington, DC area for business or pleasure, you'll enjoy outstanding accommodations, an ideal location, thoughtful amenities, and affordable rates.