Live US dealer listings Median-priced benchmark Updated 2026-07-19
Cheapest · Used 2018 Cadillac CT6 Rank #1 / 98 listings

Cheapest Used 2018 Cadillac CT6 for Sale in the US

The cheapest used 2018 Cadillac CT6 in the US today costs $13,375 — a 2018 Premium Luxury located in Philadelphia, PA. We track 98 active listings; the median price is $23,747, so the top deal is $10,372 under the median.

Browse by model year

cheapest per year

Top 10 cheapest listings

ranked by price
  1. $13,375
    2018 Cadillac CT6 Premium Luxury
    188,201 mi · Philadelphia, PA · TruCar King
    View listing →
  2. 2018 Cadillac CT6
    $13,995
    2018 Cadillac CT6 Platinum Csav
    129,367 mi · Orem, UT · AutoMatch
    View listing →
  3. 2018 Cadillac CT6
    $15,300
    2018 Cadillac CT6 36L
    113,300 mi · Painesville, OH · R&R Motors
    View listing →
  4. 2018 Cadillac CT6
    $16,548
    2018 Cadillac CT6 20T
    113,856 mi · Lithia Springs, GA · M and M Auto Superstore
    View listing →
  5. 2018 Cadillac CT6
    $16,799
    2018 Cadillac CT6 Luxury
    92,501 mi · West Palm Beach, FL · Florida Fine Cars WPB
    View listing →
  6. 2018 Cadillac CT6
    $16,995
    2018 Cadillac CT6 36L
    77,198 mi · Arlington, TX · Rite Auto
    View listing →
  7. 2018 Cadillac CT6
    $17,005
    2018 Cadillac CT6 Luxury
    120,537 mi · Winchester, VA · Dogwood Auto Group
    View listing →
  8. 2018 Cadillac CT6
    $17,491
    2018 Cadillac CT6 Luxury
    132,773 mi · Dallas, TX · Audi Dallas
    View listing →
  9. $17,799
    2018 Cadillac CT6 Luxury
    81,239 mi · Derry, NH · Pine Hill Auto
    View listing →
  10. $17,995
    2018 Cadillac CT6 Luxury
    114,282 mi · Skokie, IL · Midwest Autohaus
    View listing →

FAQ

How much does the cheapest used 2018 Cadillac CT6 cost?

$13,375 — a 2018 Premium Luxury in Philadelphia, PA (as of 2026-07-19).

What is the median price of a used 2018 Cadillac CT6?

$23,747 across 98 US dealer active listings.

How often are prices updated?

Listings and prices refresh continuously; this page is re-generated at least twice a day.

Explore more

Search with map & filters

Prices updated 2026-07-19. Data covers active dealer listings across the USA.