Used 2018 Kia Optima Price in the US
A used 2018 Kia Optima in the US typically lists for $8,995–$13,476, with a median asking price of $11,249 across 431 active US dealer listings (as of 2026-08-29). The cheapest one listed right now is $3,000, a 2018 LX in Birmingham, AL — below 95% of the market, so expect an older model year, a base trim or high mileage.
- Typical range
- $8,995 – $13,476
- Median
- $11,249
- Cheapest 5%
- under $6,995
- Cheapest listed now
- $3,000
Browse by model year
cheapest per year- All years
- 2020 · from $2,500
- 2019 · from $2,800
- 2018 · from $3,000
- 2017 · from $2,900
- 2016 · from $2,999
- 2015 · from $2,900
- 2014 · from $2,090
- 2013 · from $2,500
- 2012 · from $2,500
- 2011 · from $1,999
- 2010 · from $2,495
- 2009 · from $2,900
- 2008 · from $2,395
- 2007 · from $2,990
- 2006 · from $2,500
- 2004 · from $3,695
- 2001 · from $2,600
Cheapest 10 listed right now
ranked by price-
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$5,9992018 Kia Optima LX145,047 mi · Hueytown, AL · Birmingham Auto Auction of HueytownView 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 Kia Optima asks $8,995–$13,476. 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 Kia Optima cost?
A used 2018 Kia Optima in the US typically lists for $8,995 to $13,476, with a median asking price of $11,249 across 431 active US dealer listings. Nine in ten are priced between $6,995 and $16,098 (as of 2026-08-29, source: UnderMarket Cars).
Is $11,000 a good price for a used 2018 Kia Optima?
That sits at about the market median ($11,249) for a used 2018 Kia Optima. Under $8,995 puts you in the cheapest quarter of active US listings and under $6,995 in the cheapest 5%; above $16,098 is the priciest 5% (as of 2026-08-29).
What is the cheapest used 2018 Kia Optima for sale right now?
$3,000 — a 2018 Kia Optima LX in Birmingham, AL, $8,249 under the median (as of 2026-08-29).
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 Kia Optima price page at least twice a day. The data date shown on this page is 2026-08-29.
Explore more
Prices updated 2026-08-29. Data covers active dealer listings across the USA.