$1 OFF Coupon Code Receive $1 Off Online Tickets DC To NYC Bus Line Get Coupon Code DCTONYCBUS Receive $1 off online tickets DC to NYC Bus Line. $1 off any online ticket purchase at http://www.tripperbus.com/ for coupon code "DCTONYCBUS" Tripper Bus was voted Best Bus to New York by the Washington CityPaper. This private bus line services the route between DC and NYC with new clean buses and free wifi and charging stations.