2018 Gmc Yukon Xl prices in the U.S.
The median pre-owned asking price for a 2018 Gmc Yukon Xl in the U.S. is $24,164 based on 244 pre-owned listings (of 246 total).
As of July 25, 2026, the median asking price for a used 2018 Gmc Yukon Xl in the U.S. is $24,164, based on 244 active dealer listings tracked by VinAssessment.
◷ Updated July 25, 2026 ▤ 246 active dealer listings, refreshed daily Methodology →
Typical: $20,265–$27,909 — the middle half of 246 asking prices
Why the wide range? Price depends mostly on configuration and mileage — see below. This spread covers the middle 96% of asking prices: we exclude the cheapest and priciest 2% (payment-priced ads, typos, salvage) so outliers don't distort it.
What moves the price on a 2018 Gmc Yukon Xl
The $20,265–$27,909 typical range isn't randomness — two factors explain most of it:
The same car typically asks $20,308 in Louisiana but $27,995 in Kansas.
The SLE typically asks $18,990, while the Denali asks $25,872 — same year, same market.
Find your mileage and trim in the configurator below.
Configure the exact car
Modelled from 150 real asking prices, adjusted for mileage and location. Not a formal appraisal.
2018 Gmc Yukon Xl: a fair price for your mileage
Fair price by mileage and trim
| Mileage | All listings | Denali | SLT |
|---|---|---|---|
| Under 15K miles | $22,499 | — | $22,499 |
| 60K–75K miles | $33,304 | $34,995 | — |
| 75K–90K miles | $28,388 | $31,580 | $26,616 |
| 90K–105K miles | $28,700 | $29,283 | $25,211 |
| Over 105K miles | $22,814 | $24,129 | $19,995 |
Medians of live asking prices per band and version; “—” means fewer than 3 matching listings. National data.
Fair price by mileage — all versions combined
| Mileage ⓘ | Based on ⓘ | Fair price ⓘ | Typical range ⓘ |
|---|---|---|---|
| Under 15K miles | 7 listings | $22,499 | $21K–$23K |
| 60K–75K miles | 7 listings | $33,304 | $29K–$35K |
| 75K–90K miles | 14 listings | $28,388 | $27K–$32K |
| 90K–105K miles | 43 listings | $28,700 | $26K–$31K |
| Over 105K miles | 169 listings | $22,814 | $19K–$26K |
Same trim and condition assumed — mileage is the biggest lever after configuration.
2018 Gmc Yukon Xl: price by trim
| Trim | Based on ⓘ | Median price ⓘ | Typical range ⓘ | Where it sits ⓘ |
|---|---|---|---|---|
| Denali | 150 listings | $25,872 | $23K–$29K | |
| SLT | 88 listings | $22,230 | $19K–$25K | |
| SLE | 7 listings | $18,990 | $16K–$22K |
Based on a small number of listings per trim — medians are indicative, not definitive.
Price history
Median asking price by month · shaded band is the typical range (25th–75th percentile)
The median listing price for a 2018 Gmc Yukon Xl is $24,800 (July 2026) — down 4.6% from $25,995 in July 2025.
Monthly price table
| Month | Median price | Typical range | Vehicles listed |
|---|---|---|---|
| July 2026 | $24,800 | $20K–$28K | 260 |
| June 2026 | $24,903 | $21K–$28K | 329 |
| May 2026 | $24,390 | $21K–$28K | 367 |
| April 2026 | $24,886 | $21K–$29K | 343 |
| March 2026 | $24,795 | $21K–$28K | 361 |
| February 2026 | $23,995 | $21K–$28K | 371 |
| January 2026 | $23,993 | $21K–$27K | 352 |
| December 2025 | $24,906 | $22K–$28K | 289 |
| November 2025 | $24,599 | $22K–$28K | 237 |
| October 2025 | $25,550 | $22K–$29K | 218 |
| September 2025 | $26,544 | $23K–$30K | 198 |
| August 2025 | $26,998 | $24K–$31K | 232 |
| July 2025 | $25,995 | $23K–$32K | 69 |
2018 Gmc Yukon Xl prices by state
Listed this year counts every 2018 Gmc Yukon Xl first listed in 2026 (sold and active), with currently active cars as a floor. Typical price is the median of each car's latest asking price — or the average of active listings where this-year data is thin.
Keep exploring Yukon Xl prices
2018 Gmc Yukon Xl · $24,350 typical · 246 listingsOther Gmc Yukon Xl years
Live 2018 Gmc Yukon Xl listings, priced by VIN
Every VIN links to a full market report: decode, active listings and the local price band. Shop 2017–2019 Gmc Yukon Xl listings on VehiSales →.
More 2018 Gmc prices
Frequently asked questions
Why do 2018 Gmc Yukon Xl prices range from $14,260 to $34,628?
The spread comes down to configuration and mileage: higher-mileage, base-configuration examples sit near the low end, while low-mileage and premium configurations reach the top. Half of all listings fall between $20,265 and $27,909 — see the mileage and trim breakdowns above for where a specific vehicle lands.
Is $24,350 a good price for a 2018 Gmc Yukon Xl?
$24,350 is the market average as of July 25, 2026. Anything meaningfully below the $24,164 median is priced to move — but always compare within the same trim and mileage band, since those two factors drive most of the spread.
How many 2018 Gmc Yukon Xl are for sale right now?
246 in total, nearly all pre-owned. Counts refresh daily from live dealer inventory.
How we calculate these prices
We track 246 active listings for this vehicle across dealer sites nationwide, updated every day. Average and median are computed from real asking prices on live listings. We exclude the top and bottom 2% of prices to remove data errors, salvage titles, and monthly-payment figures posted as if they were sale prices. Prices reflect dealer asking prices — not final sale prices — and exclude taxes, fees, and incentives. Trim and mileage move the price more than any other factor; see the breakdowns above.
Want the original factory equipment and MSRP behind a specific car? Look up the original Monroney sticker for a 2018 Gmc →
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Check individual VINs before you buy — decode the exact trim and mileage, see every active listing, and how each price compares to the local market.