Used 2020 Mercedes-Benz GLS-Class Price in the US
A used 2020 Mercedes-Benz GLS-Class in the US typically lists for $28,846–$35,299, with a median asking price of $31,571 across 289 active US dealer listings (as of 2026-10-15). The cheapest one listed right now is $20,480, a 2020 GLS450-4M in Ashland, KY — below 95% of the market, so expect high mileage, a base trim or a branded title — check the vehicle history.
- Typical range
- $28,846 – $35,299
- Median
- $31,571
- Cheapest 5%
- under $24,805
- Cheapest listed now
- $20,480
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-
$20,4802020 Mercedes-Benz GLS-Class GLS450-4M142,909 mi · Ashland, KY · Clear Choice Auto Sales of AshlandView listing →
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$21,0002020 Mercedes-Benz GLS-Class GLS450-4M152,967 mi · Benton, AR · Chris Crain Chrysler Dodge Jeep RamView listing → -
$21,8842020 Mercedes-Benz GLS-Class GLS450-4M128,218 mi · Verona, NJ · DCH Montclair AcuraView listing →
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$22,5002020 Mercedes-Benz GLS-Class GLS450-4M113,128 mi · Arlington, VA · Merlex Auto GroupView listing →
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$22,7732020 Mercedes-Benz GLS-Class GLS450-4M148,528 mi · Grapevine, TX · Principle Volkswagen GrapevineView listing → -
$23,5712020 Mercedes-Benz GLS-Class GLS450-4M117,067 mi · Temple Hills, MD · Global Auto OutletView listing → -
$24,0642020 Mercedes-Benz GLS-Class GLS450-4M111,604 mi · Sacramento, CA · Approved AutosView listing →
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$24,1522020 Mercedes-Benz GLS-Class GLS450-4M106,315 mi · South San Francisco, CA · Mercedes-Benz of San FranciscoView listing →
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$24,1732020 Mercedes-Benz GLS-Class GLS450-4M110,123 mi · Somerville, NJ · Yosh Motors 22View listing →
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$24,2132020 Mercedes-Benz GLS-Class GLS450-4M111,586 mi · San Antonio, TX · Freedom ChevroletView listing →
These are the bottom of the market, not the going rate — every one is priced below 95% of active listings. A typical used 2020 Mercedes-Benz GLS-Class asks $28,846–$35,299. 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 2020 Mercedes-Benz GLS-Class cost?
A used 2020 Mercedes-Benz GLS-Class in the US typically lists for $28,846 to $35,299, with a median asking price of $31,571 across 289 active US dealer listings. Nine in ten are priced between $24,805 and $43,591 (as of 2026-10-15, source: UnderMarket Cars).
Is $32,000 a good price for a used 2020 Mercedes-Benz GLS-Class?
That sits at about the market median ($31,571) for a used 2020 Mercedes-Benz GLS-Class. Under $28,846 puts you in the cheapest quarter of active US listings and under $24,805 in the cheapest 5%; above $43,591 is the priciest 5% (as of 2026-10-15).
What is the cheapest used 2020 Mercedes-Benz GLS-Class for sale right now?
$20,480 — a 2020 Mercedes-Benz GLS-Class GLS450-4M in Ashland, KY, $11,091 under the median (as of 2026-10-15).
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 2020 Mercedes-Benz GLS-Class page is regenerated from it when it is requested. The figures on this page are from 2026-10-15.
Explore more
Prices updated 2026-10-15. Data covers active dealer listings across the USA.