Used 2018 Chevrolet Sonic Price in the US
A used 2018 Chevrolet Sonic in the US typically lists for $6,985–$10,447, with a median asking price of $7,999 across 99 active US dealer listings (as of 2026-09-01). The cheapest one listed right now is $4,200, a 2018 LT in Youngstown, OH — below 95% of the market, so expect an older model year, a base trim or high mileage.
- Typical range
- $6,985 – $10,447
- Median
- $7,999
- Cheapest 5%
- under $5,245
- Cheapest listed now
- $4,200
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cheapest per yearCheapest 10 listed right now
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$4,8992018 Chevrolet Sonic LS131,973 mi · Georgetown, KY · Dan Cummins Chrysler Dodge Jeep RAM of GeorgetownView listing → -
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These are the bottom of the market, not the going rate — every one is priced below 95% of active listings. A typical used 2018 Chevrolet Sonic asks $6,985–$10,447. Cars this far under usually carry an older model year, a base trim or high mileage.
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10 pinnedFAQ
How much does a used 2018 Chevrolet Sonic cost?
A used 2018 Chevrolet Sonic in the US typically lists for $6,985 to $10,447, with a median asking price of $7,999 across 99 active US dealer listings. Nine in ten are priced between $5,245 and $14,058 (as of 2026-09-01, source: UnderMarket Cars).
Is $8,000 a good price for a used 2018 Chevrolet Sonic?
That sits at about the market median ($7,999) for a used 2018 Chevrolet Sonic. Under $6,985 puts you in the cheapest quarter of active US listings and under $5,245 in the cheapest 5%; above $14,058 is the priciest 5% (as of 2026-09-01).
What is the cheapest used 2018 Chevrolet Sonic for sale right now?
$4,200 — a 2018 Chevrolet Sonic LT in Youngstown, OH, $3,799 under the median (as of 2026-09-01).
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 2018 Chevrolet Sonic price page at least twice a day. The data date shown on this page is 2026-09-01.
Explore more
Prices updated 2026-09-01. Data covers active dealer listings across the USA.