Cheapest Used 2018 Audi S6 for Sale in the US

• All years
• 2025 · from $57,914
• 2024 · from $59,799
• 2023 · from $50,413
• 2022 · from $38,888
• 2021 · from $30,992
• 2020 · from $30,480
• 2018 · from $21,499
• 2017 · from $14,995
• 2016 · from $14,275
• 2015 · from $15,000
• 2014 · from $10,496
• 2013 · from $14,392
• 2010 · from $19,000
• 2008 · from $11,995
• 2007 · from $2,989
• 2002 · from $14,995

1. $21,499

   2018 Audi S6 Quattro Premium Plus

   128,046 mi · Little Ferry, NJ · Magic Auto Sales

   View listing →
2. 
   $22,889

   2018 Audi S6 Quattro Premium Plus

   109,908 mi · Norfolk, VA · Checkered Flag Honda

   View listing →
3. 
   $22,999

   2018 Audi S6 Quattro Premium Plus

   118,845 mi · Quakertown, PA · Trend Auto Trader

   View listing →
4. 
   $24,919

   2018 Audi S6 Quattro Premium Plus

   92,500 mi · Lawrenceville, GA · Used Imports Auto

   View listing →
5. 
   $26,000

   2018 Audi S6 Quattro Premium Plus

   106,132 mi · Kearneysville, WV · Select Dream Cars, Preowned

   View listing →
6. 
   $27,028

   2018 Audi S6 Quattro Prestige

   83,995 mi · Monmouth Junction, NJ · Route 1 Hyundai

   View listing →
7. 
   $27,500

   2018 Audi S6 Quattro Premium Plus

   82,150 mi · Peabody, MA · All Motors

   View listing →
8. $28,633

   2018 Audi S6 Quattro Prestige

   64,421 mi · Sioux Falls, SD · Vern Eide Mitsubishi

   View listing →
9. 
   $30,498

   2018 Audi S6 Quattro Prestige

   67,375 mi · Centennial, CO · Colorado Auto Finders

   View listing →
10. 
    $30,589

    2018 Audi S6 Quattro Prestige

    77,145 mi · Princeton, NJ · Honda of Princeton

    View listing →

• All used Audi models

Search with map & filters