28Mar 2013 Subway Offers 6 Inch Roast Chicken Sub for Only $3 in March! by Jackie ⋅ Leave a Comment Spread the loveTweetSubway is offering a 6-inch Roast Chicken sub for only $3 now through March 31, 2013! No coupon required. Also during March, Subway has their Buffalo Chicken footlong for just $6, plus a regular selection of $5 footlongs. Posted in: Daily Restaurant Deals ⋅ Tagged: restaurant deals