Coupon Code Click to Redeem Click Here to Get $5 off at Gray Line Automatically Applied! Gray Line New York is the premier touring and travel company in New York City. They currently have a great Gray Line New York promotional code that will get you 5 dollars off your purchase, which you can redeem right now by clicking this coupon link. At Gray Line, you will find a variety of tour packages, everything from simple bus tours, to helicopter tours around the city. One great thing that people seem to do is sign up for 72 hours bus tours where they can get on and off whenever they want. You can use this to get around the city without spending a ton of cab fare. If you are taking a trip to NYC, you should definitely check out Gray Line to find yourself a great tour, getting the full experience of New York City. Don't forget to use the coupon code above!