Used 2021 Cadillac XT6 Price in the US
A used 2021 Cadillac XT6 in the US typically lists for $23,588–$28,482, with a median asking price of $25,996 across 211 active US dealer listings (as of 2026-10-14). The cheapest one listed right now is $13,660, a 2021 Luxury in Indianapolis, IN — below 95% of the market, so expect high mileage, a base trim or a branded title — check the vehicle history.
- Typical range
- $23,588 – $28,482
- Median
- $25,996
- Cheapest 5%
- under $18,997
- Cheapest listed now
- $13,660
Browse by model year
typical price per yearCheapest 10 listed right now
ranked by price-
$13,6602021 Cadillac XT6 Luxury145,681 mi · Indianapolis, IN · Metro Nissan of IndianapolisView listing → -
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$15,7502021 Cadillac XT6 Platinum Premium Luxury136,380 mi · Colorado Springs, CO · Namrood Auto Sales 1View listing → -
$15,7902021 Cadillac XT6 Sport126,371 mi · Mountain Lakes, NJ · Auto Spot of Mountain LakesView listing → -
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$17,6412021 Cadillac XT6 Luxury94,133 mi · North Fort Myers, FL · Johnson Family Motors LLCView listing → -
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$17,9382021 Cadillac XT6 Premium Luxury126,944 mi · Wooster, OH · Germain Honda of College HillsView listing → -
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$18,4992021 Cadillac XT6 Premium Luxury130,968 mi · Inver Grove Heights, MN · 1st Class Auto SalesView 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 $23,588–$28,482. Cars this far under: expect high mileage, a base trim or a branded title — check the vehicle history.
Deals on the map
10 pinnedFAQ
How much does a used 2021 Cadillac XT6 cost?
A used 2021 Cadillac XT6 in the US typically lists for $23,588 to $28,482, with a median asking price of $25,996 across 211 active US dealer listings. Nine in ten are priced between $18,997 and $33,165 (as of 2026-10-14, source: UnderMarket Cars).
Is $26,000 a good price for a used 2021 Cadillac XT6?
That sits at about the market median ($25,996) for a used 2021 Cadillac XT6. Under $23,588 puts you in the cheapest quarter of active US listings and under $18,997 in the cheapest 5%; above $33,165 is the priciest 5% (as of 2026-10-14).
What is the cheapest used 2021 Cadillac XT6 for sale right now?
$13,660 — a 2021 Cadillac XT6 Luxury in Indianapolis, IN, $12,336 under the median (as of 2026-10-14).
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 Cadillac XT6 page is regenerated from it when it is requested. The figures on this page are from 2026-10-14.
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Prices updated 2026-10-14. Data covers active dealer listings across the USA.