2018 Kia Optima prices in Missouri
The median asking price for a 2018 Kia Optima in Missouri is $10,624 based on 12 active listings.
As of August 18, 2026, the median asking price for a 2018 Kia Optima in Missouri is $10,624, based on 12 active dealer listings tracked by VinAssessment.
◷ Updated August 18, 2026 ▤ 12 active dealer listings, refreshed daily ⛭ Generation: 2015–2020
Typical: $9,980–$11,693 — the middle half of 12 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 Kia Optima
The $9,980–$11,693 typical range isn't randomness — one factor explains most of it:
Asking prices run about $15,812 at 30K–45K miles and fall to $8,999 over 105K miles — roughly $900 for every 10,000 miles.
Find your mileage and trim in the configurator below.
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Modelled from 12 real asking prices, adjusted for mileage and location. Not a formal appraisal.
What would a 2018 Kia Optima cost per month?
Estimate the monthly payment on a $11,151 vehicle. Move the numbers to match your own loan.
Estimate only. Excludes tax, title, registration and dealer fees, and assumes a fixed-rate loan with equal monthly payments. Your actual rate depends on your credit and lender.
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2018 Kia Optima: a fair price for your mileage
A 2018 Kia Optima sheds roughly $900 for every 10,000 miles. Find your mileage below.
| Mileage ⓘ | Based on ⓘ | Fair price ⓘ | Typical range ⓘ |
|---|---|---|---|
| 30K–45K miles | 10 listings | $15,812 | $13K–$17K |
| 45K–60K miles | 18 listings | $15,016 | $14K–$16K |
| 60K–75K miles | 46 listings | $13,990 | $13K–$15K |
| 75K–90K miles | 75 listings | $12,769 | $12K–$13K |
| 90K–105K miles | 77 listings | $11,348 | $10K–$13K |
| Over 105K miles | 175 listings | $8,999 | $7,792–$11K |
Same trim and condition assumed — mileage is the biggest lever after configuration. National data; Missouri prices track it closely.
Trim-level pricing isn't reliable enough for this model yet — mileage and configuration explain most of the spread above.
Live 2018 Kia Optima listings, priced by VIN
Every VIN links to a full market report: decode, active listings and the local price band. Shop 2017–2019 Kia Optima listings on VehiSales →.
Price history
Median asking price by month — national · shaded band is the typical range (25th–75th percentile)
The median listing price for a 2018 Kia Optima is $11,988 (August 2026) — down 4.1% from $12,500 in August 2025.
Monthly price table
| Month | Median price | Typical range | Vehicles listed |
|---|---|---|---|
| August 2026 | $11,988 | $9,963–$14K | 426 |
| July 2026 | $11,552 | $9,574–$14K | 698 |
| June 2026 | $11,495 | $9,219–$14K | 707 |
| May 2026 | $11,494 | $9,357–$14K | 669 |
| April 2026 | $11,095 | $9,000–$13K | 557 |
| March 2026 | $11,633 | $9,422–$14K | 766 |
| February 2026 | $11,352 | $9,499–$14K | 716 |
| January 2026 | $10,996 | $8,995–$13K | 688 |
| December 2025 | $11,002 | $9,071–$13K | 600 |
| November 2025 | $10,998 | $8,995–$13K | 482 |
| October 2025 | $11,830 | $9,900–$14K | 389 |
| September 2025 | $11,999 | $10K–$14K | 364 |
| August 2025 | $12,500 | $9,999–$15K | 185 |
2018 Kia Optima inventory across the U.S.
Keep exploring Optima prices
2018 Kia Optima · $10,624 typical · 12 listingsOther Kia Optima years
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Frequently asked questions
Why do 2018 Kia Optima prices range from $6,762 to $14,799 in Missouri?
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 $9,980 and $11,693 — see the mileage and trim breakdowns above for where a specific vehicle lands.
How much should mileage change the price of a 2018 Kia Optima?
Expect roughly $900 less for every 10,000 miles on the odometer. A 60K-mile example should cost about $2,700 less than a 30K-mile one of the same trim — check the fair-price-by-mileage table above for your band.
Do Kia Optima prices in Missouri differ from the rest of the country?
Yes. The average in Missouri is $10,961, which is $312 below the national average of $11,273. Local supply, demand and transport costs all play a part.
How many 2018 Kia Optima are for sale in Missouri right now?
12 in total, nearly all pre-owned. Counts refresh daily from live dealer inventory.
How we calculate these prices
We track 12 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.
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