Cheap Apartments For Rent In West Mifflin Pa . Find your next cheap apartments for rent. As of february 2022, the average apartment rent in west mifflin, pa is $613 for a studio, $628 for one bedroom, and $737 for two bedrooms. Mifflin Estates Apartments West Mifflin, PA from www.apartments.com Apartments with utilities included in west mifflin; Apartments with washer and dryer in unit in west mifflin; You might be interested in studio apartments , 1.