Used 2021 Audi S5 Price in the US
A used 2021 Audi S5 in the US typically lists for $34,974–$40,317, with a median asking price of $38,289 across 80 active US dealer listings (as of 2026-10-17). The cheapest one listed right now is $24,500, a 2021 Quattro Prestige in Oakland, CA — below 95% of the market, so expect high mileage, a base trim or a branded title — check the vehicle history.
- Typical range
- $34,974 – $40,317
- Median
- $38,289
- Cheapest 5%
- under $29,211
- Cheapest listed now
- $24,500
Browse by model year
typical price per yearCheapest 10 listed right now
ranked by price-
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$28,9952021 Audi S5 Quattro Prestige105,558 mi · Warr Acres, OK · Auto Solutions Buy Here Pay HereView listing → -
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$30,6992021 Audi S5 Quattro Premium Plus71,699 mi · Irondale, AL · BMW Mini of BirminghamView listing → -
$30,8002021 Audi S5 Quattro Prestige91,945 mi · Westminster, MD · Heritage Honda of WestminsterView listing →
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$31,2962021 Audi S5 Quattro Premium Plus74,178 mi · North Plainfield, NJ · CarTopiaView listing → -
These are the bottom of the market, not the going rate — every one is priced below 95% of active listings. A typical used 2021 Audi S5 asks $34,974–$40,317. Cars this far under: expect high mileage, a base trim or a branded title — check the vehicle history.
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10 pinnedFAQ
How much does a used 2021 Audi S5 cost?
A used 2021 Audi S5 in the US typically lists for $34,974 to $40,317, with a median asking price of $38,289 across 80 active US dealer listings. Nine in ten are priced between $29,211 and $46,002 (as of 2026-10-17, source: UnderMarket Cars).
Is $38,000 a good price for a used 2021 Audi S5?
That sits at about the market median ($38,289) for a used 2021 Audi S5. Under $34,974 puts you in the cheapest quarter of active US listings and under $29,211 in the cheapest 5%; above $46,002 is the priciest 5% (as of 2026-10-17).
What is the cheapest used 2021 Audi S5 for sale right now?
$24,500 — a 2021 Audi S5 Quattro Prestige in Oakland, CA, $13,789 under the median (as of 2026-10-17).
Are these MSRP or real asking prices?
Real asking prices from active US dealer listings, deduplicated by VIN — not manufacturer MSRP. They already reflect dealer discounts, and they exclude tax, title, registration and dealer fees.
How often are prices updated?
The listing data behind UnderMarket Cars is rebuilt from live US dealer inventory every few hours, and this used 2021 Audi S5 page is regenerated from it when it is requested. The figures on this page are from 2026-10-17.
Explore more
Prices updated 2026-10-17. Data covers active dealer listings across the USA.