Virgin America has a low $171.20 round trip fare from Washington DCA to Las Vegas and $201.20 to Los Angeles. These low fares are for Tuesday and Wednesday travel on dates from October to February. American had competitive fares for a few hours yesterday, but those tickets are $100 more today.
Virgin America Washington National DCA – Dallas DAL – Las Vegas LAS – DAL – DCA
Virgin America Washington National DCA – Dallas DAL – Los Angeles LAX – DAL – DCA