They don do united out of hef. THey do take a plane to IAD every morning to start the day and go IAD-PIT for US Airways. All of the United planes overnight at their base. IF you hear United coming out of HEF, It's a repo. They do a lot of those 5212 and 5214 flights a day out of IAD or HEF, to swap planes out, drop one off for MX etc. THere is a crew on a 5 hr sit everyday at IAD now. THis month it's CHO's turn. Next month it goes back to HPN i believe.