Durham NC's favorite flea market. Open every Saturday & Sunday. Bring your "for sale" items to the Durham Green Flea Market where hundreds of people can see what you have to sell. Bring your garage or yard sale here, where buyers are waiting to see your goods. The Durham Green Flea Market. The largest flea market in Durham County. Join us for a weekend of family shopping fun. With over 150 vendors every weekend we guarantee your shopping needs will be fulfilled.