Live US dealer listings Median-priced benchmark Updated 2026-09-01
Market price · Used 2021 Cadillac XT6 176 listings tracked

Used 2021 Cadillac XT6 Price in the US

A used 2021 Cadillac XT6 in the US typically lists for $24,475–$29,329, with a median asking price of $27,399 across 176 active US dealer listings (as of 2026-09-01). The cheapest one listed right now is $16,794, a 2021 Premium Luxury in Wood Ridge, NJ — below 95% of the market, so expect an older model year, a base trim or high mileage.

Used 2021 Cadillac XT6 · asking prices176 listings
$20k$34k
Typical range
$24,475 – $29,329
Median
$27,399
Cheapest 5%
under $20,962
Cheapest listed now
$16,794

Browse by model year

cheapest per year

Cheapest 10 listed right now

ranked by price
  1. $16,794
    2021 Cadillac XT6 Premium Luxury
    113,674 mi · Wood Ridge, NJ · Auto Spot
    View listing →
  2. 2021 Cadillac XT6
    $16,900
    2021 Cadillac XT6
    103,009 mi · Miami, FL · miamirebuiltcars019
    View listing →
  3. $17,999
    2021 Cadillac XT6 Premium Luxury
    130,968 mi · Inver Grove Heights, MN · 1st Class Auto Sales LLC
    View listing →
  4. 2021 Cadillac XT6
    $18,498
    2021 Cadillac XT6 Premium Luxury
    131,468 mi · Wilson, NC · Glorious Motorsports
    View listing →
  5. 2021 Cadillac XT6
    $18,700
    2021 Cadillac XT6 Luxury
    94,133 mi · North Fort Myers, FL · Johnson Family Motors LLC
    View listing →
  6. 2021 Cadillac XT6
    $19,500
    2021 Cadillac XT6 Premium Luxury
    117,043 mi · Thomasville, NC · Trifecta Auto Sales
    View listing →
  7. $19,692
    2021 Cadillac XT6 Premium Luxury
    98,180 mi · Newark, NJ · Fast and Furious Auto Sales
    View listing →
  8. 2021 Cadillac XT6
    $20,388
    2021 Cadillac XT6 Premium Luxury
    114,871 mi · Southaven, MS · Drivemax of Southaven
    View listing →
  9. $20,861
    2021 Cadillac XT6 Premium Luxury
    106,111 mi · Waterford, MI · Lunghamer Buick GMC
    View listing →
  10. 2021 Cadillac XT6
    $20,995
    2021 Cadillac XT6 Premium Luxury
    102,787 mi · El Paso, TX · Southwest Auto Group TX, 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 2021 Cadillac XT6 asks $24,475–$29,329. Cars this far under usually carry an older model year, a base trim or high mileage.

FAQ

How much does a used 2021 Cadillac XT6 cost?

A used 2021 Cadillac XT6 in the US typically lists for $24,475 to $29,329, with a median asking price of $27,399 across 176 active US dealer listings. Nine in ten are priced between $20,962 and $33,617 (as of 2026-09-01, source: UnderMarket Cars).

Is $27,000 a good price for a used 2021 Cadillac XT6?

That sits at about the market median ($27,399) for a used 2021 Cadillac XT6. Under $24,475 puts you in the cheapest quarter of active US listings and under $20,962 in the cheapest 5%; above $33,617 is the priciest 5% (as of 2026-09-01).

What is the cheapest used 2021 Cadillac XT6 for sale right now?

$16,794 — a 2021 Cadillac XT6 Premium Luxury in Wood Ridge, NJ, $10,605 under the median (as of 2026-09-01).

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?

UnderMarket Cars refreshes US dealer listings continuously and re-generates this used 2021 Cadillac XT6 price page at least twice a day. The data date shown on this page is 2026-09-01.

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Prices updated 2026-09-01. Data covers active dealer listings across the USA.