Portland Apartments For Rent Cheap . See floorplans, pictures, prices & info for available apartments in portland, or. Start your free search for cheap apartments today. The Cornerstone Portland, OR apartments for rent from www.apartmentlist.com Listings, photos, tours, availability and more. Browse through cheap apartments for rent in portland, oregon by searching our easy apartment finder tool. As of june 2022, the average apartment rent in portland, or is $1,500 for a studio, $1,781 for one bedroom, $2,304 for two bedrooms, and $2,915 for three bedrooms.