Live US dealer listings Median-priced benchmark Updated 2026-10-18
Market price · Used 2018 Audi A3 221 listings tracked

Used 2018 Audi A3 Price in the US

A used 2018 Audi A3 in the US typically lists for $12,499–$18,161, with a median asking price of $15,475 across 221 active US dealer listings (as of 2026-10-18). The cheapest one listed right now is $6,090, a 2018 Premium Komfort Canada in Miami, FL — below 95% of the market, so expect high mileage, a base trim or a branded title — check the vehicle history.

Used 2018 Audi A3 · asking prices221 listings
$9,000$22k
Typical range
$12,499 – $18,161
Median
$15,475
Cheapest 5%
under $9,900
Cheapest listed now
$6,090

Browse by model year

typical price per year
More years (11)

Cheapest 10 listed right now

ranked by price
  1. 2018 Audi A3
    $6,090
    2018 Audi A3 Premium Komfort Canada
    115,496 mi · Miami, FL · Lions Pre-Owned Miami
    View listing →
  2. 2018 Audi A3
    $6,999
    2018 Audi A3 Premium Komfort Canada
    118,016 mi · Bensenville, IL · Royce Auto LLC
    View listing →
  3. $7,495
    2018 Audi A3 Premium Komfort Canada
    158,047 mi · St Charles, MO · Charlies Choice Cars
    View listing →
  4. 2018 Audi A3
    $7,900
    2018 Audi A3 Premium Komfort Canada
    120,000 mi · Tarzana, CA · Auto Union
    View listing →
  5. 2018 Audi A3
    $7,995
    2018 Audi A3 Premium Komfort Canada
    122,021 mi · West Chester, OH · Cartrader
    View listing →
  6. 2018 Audi A3
    $7,999
    2018 Audi A3 Premium Komfort Canada
    112,455 mi · Orlando, FL · Orlando Car Depot LLC
    View listing →
  7. $8,989
    2018 Audi A3 Premium Komfort Canada
    107,403 mi · Hollywood, FL · My Auto Source
    View listing →
  8. 2018 Audi A3
    $9,220
    2018 Audi A3 E-Tron Premium Progressiv
    108,810 mi · Alvin, TX · Auto Boutique Texas
    View listing →
  9. 2018 Audi A3
    $9,492
    2018 Audi A3 Premium Komfort Canada
    120,608 mi · Sanford, FL · AutoNation Acura North Orlando
    View listing →
  10. 2018 Audi A3
    $9,500
    2018 Audi A3 Premium Komfort Canada
    85,822 mi · Orlando, FL · Alexx Motors LLC
    View listing →

These are the bottom of the market, not the going rate — every one is priced below 95% of active listings. A typical used 2018 Audi A3 asks $12,499–$18,161. Cars this far under: expect high mileage, a base trim or a branded title — check the vehicle history.

FAQ

How much does a used 2018 Audi A3 cost?

A used 2018 Audi A3 in the US typically lists for $12,499 to $18,161, with a median asking price of $15,475 across 221 active US dealer listings. Nine in ten are priced between $9,900 and $21,700 (as of 2026-10-18, source: UnderMarket Cars).

Is $15,000 a good price for a used 2018 Audi A3?

That sits at about the market median ($15,475) for a used 2018 Audi A3. Under $12,499 puts you in the cheapest quarter of active US listings and under $9,900 in the cheapest 5%; above $21,700 is the priciest 5% (as of 2026-10-18).

What is the cheapest used 2018 Audi A3 for sale right now?

$6,090 — a 2018 Audi A3 Premium Komfort Canada in Miami, FL, $9,385 under the median (as of 2026-10-18).

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 2018 Audi A3 page is regenerated from it when it is requested. The figures on this page are from 2026-10-18.

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Prices updated 2026-10-18. Data covers active dealer listings across the USA.