Used 2021 Mercedes-Benz GLS-Class Price in the US
A used 2021 Mercedes-Benz GLS-Class in the US typically lists for $36,585–$60,646, with a median asking price of $43,980 across 179 active US dealer listings (as of 2026-10-18). The cheapest one listed right now is $25,995, a 2021 GLS450-4M in Kingston, NY — below 95% of the market, so expect high mileage, a base trim or a branded title — check the vehicle history.
- Typical range
- $36,585 – $60,646
- Median
- $43,980
- Cheapest 5%
- under $28,964
- Cheapest listed now
- $25,995
Browse by model year
typical price per year- All years
- 2027 · typ. $104,475
- 2026 · typ. $91,154
- 2025 · typ. $69,895
- 2024 · typ. $66,396
- 2023 · typ. $56,547
- 2022 · typ. $44,997
- 2021 · typ. $43,786
- 2020 · typ. $31,699
More years (3)
Cheapest 10 listed right now
ranked by price-
$25,9952021 Mercedes-Benz GLS-Class GLS450-4M121,764 mi · Kingston, NY · Romeo NissanView listing →
-
$25,9992021 Mercedes-Benz GLS-Class GLS450-4M117,817 mi · Tampa, FL · Veterans FordView listing →
-
$26,0582021 Mercedes-Benz GLS-Class GLS450-4M110,797 mi · Colma, CA · Lexus of SerramonteView listing →
-
$26,9992021 Mercedes-Benz GLS-Class GLS450-4M120,430 mi · Monroe, NC · Ride Now Motors MonroeView listing →
-
$27,9952021 Mercedes-Benz GLS-Class GLS450-4M102,912 mi · West Chester, OH · Daas ImportsView listing → -
$28,3102021 Mercedes-Benz GLS-Class GLS450-4M97,201 mi · Heber Springs, AR · Red River Dodge Chrysler JeepView listing → -
$28,4992021 Mercedes-Benz GLS-Class GLS450-4M95,196 mi · Anaheim, CA · Mercedes-Benz of AnaheimView listing → -
$28,5742021 Mercedes-Benz GLS-Class GLS450-4M130,841 mi · Southaven, MS · Landers Ford SouthView listing →
-
$28,6832021 Mercedes-Benz GLS-Class GLS450-4M100,464 mi · West Covina, CA · Envision Mercedes-Benz of West CovinaView listing → -
$28,9952021 Mercedes-Benz GLS-Class GLS450-4M71,351 mi · Freeport, NY · South Shore MitsubishiView 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 Mercedes-Benz GLS-Class asks $36,585–$60,646. 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 Mercedes-Benz GLS-Class cost?
A used 2021 Mercedes-Benz GLS-Class in the US typically lists for $36,585 to $60,646, with a median asking price of $43,980 across 179 active US dealer listings. Nine in ten are priced between $28,964 and $106,442 (as of 2026-10-18, source: UnderMarket Cars).
Is $44,000 a good price for a used 2021 Mercedes-Benz GLS-Class?
That sits at about the market median ($43,980) for a used 2021 Mercedes-Benz GLS-Class. Under $36,585 puts you in the cheapest quarter of active US listings and under $28,964 in the cheapest 5%; above $106,442 is the priciest 5% (as of 2026-10-18).
What is the cheapest used 2021 Mercedes-Benz GLS-Class for sale right now?
$25,995 — a 2021 Mercedes-Benz GLS-Class GLS450-4M in Kingston, NY, $17,985 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 2021 Mercedes-Benz GLS-Class page is regenerated from it when it is requested. The figures on this page are from 2026-10-18.
Explore more
Prices updated 2026-10-18. Data covers active dealer listings across the USA.