Used 2021 Mercedes-Benz GLS-Class Price in the US
A used 2021 Mercedes-Benz GLS-Class in the US typically lists for $38,422–$60,305, with a median asking price of $43,995 across 155 active US dealer listings (as of 2026-09-03). The cheapest one listed right now is $9,611, a 2021 Amg Gls63 in Cape Girardeau, MO — below 95% of the market, so expect an older model year, a base trim or high mileage.
- Typical range
- $38,422 – $60,305
- Median
- $43,995
- Cheapest 5%
- under $30,868
- Cheapest listed now
- $9,611
Browse by model year
cheapest per yearCheapest 10 listed right now
ranked by price-
$9,6112021 Mercedes-Benz GLS-Class Amg Gls6357,464 mi · Cape Girardeau, MO · John Sinclair NissanView listing →
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$26,0002021 Mercedes-Benz GLS-Class Gls450-4m106,724 mi · STILLWATER, OK · Wilson GMCView listing →
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$27,8722021 Mercedes-Benz GLS-Class Gls450-4m84,514 mi · Kearny, NJ · Ideal Automotive Sales of New JerseyView listing →
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$29,9882021 Mercedes-Benz GLS-Class Gls450-4m117,817 mi · Tampa, FL · Veterans FordView listing →
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$29,9972021 Mercedes-Benz GLS-Class Gls450-4m95,196 mi · Hartford, CT · New Country Mercedes-BenzView listing → -
$30,3902021 Mercedes-Benz GLS-Class Gls450-4m80,396 mi · Pinebrook, NJ · Paul Miller ToyotaView listing →
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$30,4482021 Mercedes-Benz GLS-Class Gls450-4m108,265 mi · North Olmsted, OH · Bentley ClevelandView listing →
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$30,7522021 Mercedes-Benz GLS-Class Gls450-4m71,351 mi · West Hempstead, NY · NASSAU AUTO MALLView listing → -
$30,9302021 Mercedes-Benz GLS-Class Gls450-4m94,679 mi · West Covina, CA · Plug-in AutoView listing →
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$30,9792021 Mercedes-Benz GLS-Class Gls450-4m63,816 mi · Woodbridge, VA · CarGet MotorsView 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 $38,422–$60,305. Cars this far under usually carry an older model year, a base trim or high mileage.
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 $38,422 to $60,305, with a median asking price of $43,995 across 155 active US dealer listings. Nine in ten are priced between $30,868 and $112,031 (as of 2026-09-03, source: UnderMarket Cars).
Is $44,000 a good price for a used 2021 Mercedes-Benz GLS-Class?
That sits at about the market median ($43,995) for a used 2021 Mercedes-Benz GLS-Class. Under $38,422 puts you in the cheapest quarter of active US listings and under $30,868 in the cheapest 5%; above $112,031 is the priciest 5% (as of 2026-09-03).
What is the cheapest used 2021 Mercedes-Benz GLS-Class for sale right now?
$9,611 — a 2021 Mercedes-Benz GLS-Class Amg Gls63 in Cape Girardeau, MO, $34,384 under the median (as of 2026-09-03).
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 Mercedes-Benz GLS-Class price page at least twice a day. The data date shown on this page is 2026-09-03.
Explore more
Prices updated 2026-09-03. Data covers active dealer listings across the USA.