The average asking price for a used 2020 Audi S5 Sportback is $30,091, with 72,747 miles on average, across 10 cars for sale at U.S. dealers as of Nov 9, 2026.
Used and certified cars for sale at US dealers, each car counted once. Days listed are the dealer’s own days on market where they publish it. Price moves compare the same cars at both ends of the window.