The Wingate hotel in Chantilly is exactly 12 minutes from IAD. The crew rate is always $52.00 and is a great deal. The staff is fantastic, they offer a FULL breakfast and the rooms are new and clean. There are many restaurants nearby and the shuttle is always available. They run the airport shuttle 24 hours/day so there is never a problem. Try this place out. They are also considering a stay 12 nights get the 13th free program. Their number is 571.203.0999