Search and browse 899 cheap (under $400) apartments available for rent in Knoxville, TN. With apartments that span the entire city, you will find an apartment in Knoxville for just the right price. During your search, sort your favorite cheap (under $400) apartments by one of our listed amenities — covered parking, in-unit washer and dryer, a rooftop pool, a modern fitness center, an updated kitchen, energy efficient appliances, smart technology, online leasing, payments, and more. Want to tour a property? Schedule a tour online and you’ll be moving in to your new Knoxville apartment before you know it.