U.S. Patent No. 12,236,477 — Patented Automotive Data Standardization Technology
OAV

Best Priced 2021 Hyundai Elantra in Illinois

The best priced 2021 Hyundai Elantra in Illinois are vehicles currently listed below their typical market range, based on local comparables and days-on-lot velocity. These vehicles are ranked based on how far below their expected market range they fall and how quickly similar vehicles are selling.

Market snapshot · May 23, 2026

OAV.io analyzes millions of vehicle listings using RetailVision™ market data to identify vehicles priced below expected market ranges based on year, make, model, trim (when available), and local comparables.

OAV helps determine if a vehicle is a good deal by comparing it to similar listings and expected sell-through rates.

According to RetailVision™ data, OAV is currently analyzing approximately 39 2021 Hyundai Elantra across the Illinois market, refreshed daily.

Total 2021 Hyundai Elantra

39

Average Price

$16,089

Price Range

$10,955–$21,990

Avg Days on Lot

54

How OAV Identifies Deals

OAV uses RetailVision™ market data to analyze current listings, historical sales patterns, and local market conditions. Vehicles are ranked based on pricing versus comparable listings in the same region and expected sell-through velocity.

This helps identify undervalued vehicles and determine whether a listing represents a great deal or a good deal in its local market.

Powered by OAV's patented vehicle market standardization technology (U.S. Patent No. 12,236,477).

Learn how OAV identifies Demand-Verified Deals™

What makes OAV different

Unlike traditional listing sites, OAV ranks vehicles using price-to-market analysis, local comparable ranges, days-on-lot, comparable count, and demand and velocity signals from similar vehicles. That helps shoppers identify listings that are not just cheap, but competitively priced against the local market.

2021 Hyundai Elantra market summary — Illinois

MarketIllinois
Body type2021 Hyundai Elantra
Listings analyzed39
Average price$16,089
Price range$10,955 – $21,990
Average days on lot54 days
Ranking signalsPrice-to-market, year, mileage, days-on-lot, comparable count
Refresh cadenceDaily

OAV answers these questions

What are the best priced 2021 Hyundai Elantra in Illinois?
OAV ranks 2021 Hyundai Elantra in Illinois by how far below their typical market range they are listed, using local comparable vehicles and days-on-lot velocity. Listings labeled Great Deal sit below the comparable range; Fair Price sits within it.
Which 2021 Hyundai Elantra in Illinois are priced below market?
2021 Hyundai Elantra flagged as undervalued are priced below the typical range for comparable 2021 Hyundai Elantra in Illinois. The "Top Deals" section on every market page surfaces these first, with the percentage gap from the typical range shown per listing.
Which listings have high sell-through velocity in Illinois?
OAV compares each listing's days-on-lot against the local market average. Listings selling meaningfully faster than the local average are tagged "high demand in this market" — a leading indicator of competitive pricing and strong shopper interest.
Which 2021 Hyundai Elantra are undervalued compared with local comparables in Illinois?
OAV's Price-to-Market analysis compares every listing against similar 2021 Hyundai Elantra in Illinois, using year, make, model, trim, mileage, and condition signals. Undervalued listings price below the typical comparable range and are surfaced as Great Deals.

How OAV works — common questions

How does OAV find cars priced below market?
OAV compares each listing against similar vehicles currently for sale in the local and regional market — using year, make, model, trim, mileage, and condition signals — to compute a price-to-market range. Listings priced below the bottom of their typical range are flagged as undervalued, surfaced as Great Deals, and shown first in every market view.
What makes a Demand-Verified Deal different from a cheap listing?
A cheap listing is just one that's priced low. A Demand-Verified Deal is priced below market AND backed by sell-through evidence — the listing's days-on-lot relative to similar vehicles tells us whether the local market is actually buying at that price band. Combining the price signal with the demand signal separates real deals from listings that are cheap because nobody wants them.
Does OAV use local market comparables?
Yes. Every listing is benchmarked against millions of comparable retail listings in the same metro and broader region — never national averages. A truck priced $2,000 below market in Dallas is compared against Dallas trucks; an EV priced below market in Los Angeles is compared against LA EVs. Local comparables make the price-to-market math meaningful.
Why does days-on-lot matter when shopping for used cars?
Days-on-lot is the strongest leading indicator of competitive pricing in a local market. A listing that turns over faster than the local average is, in aggregate, priced more attractively to buyers — which usually correlates with being below the typical price-to-market range. Slower-than-average days-on-lot can be the opposite signal: priced for the seller's expectations, not the market's.
Can OAV help find trucks, SUVs, or EVs priced below market?
Yes — body-type-specific market views are available for trucks, SUVs, sedans, and EVs in every major U.S. metro and ZIP code. Each view ranks listings by how far below the typical range they're priced, includes Demand-Verified Deals where sell-through evidence supports the label, and shows local comparable ranges + days-on-lot per listing. Start at the homepage or any city or ZIP page.

Explore more markets

All 2021 Hyundai Elantra in Illinois

Showing the 24 best-priced Hyundai Elantra from 39 active listings.

No Photo

2021 Hyundai Elantra

Joliet, IL

Unscored
$15,99925,492 mi

Market: $15,999$15,999

Joliet, IL

No Photo

2021 Hyundai Elantra

Elgin, IL

Unscored
$11,995135,692 mi

Market: $11,995$11,995

Elgin, IL

No Photo

2021 Hyundai Elantra

Moline, IL

Unscored
$14,9009,711 mi

Market: $14,900$14,900

Moline, IL

No Photo

2021 Hyundai Elantra

Des Plaines, IL

Unscored
$16,52750,062 mi

Market: $16,527$16,527

Des Plaines, IL

No Photo

2021 Hyundai Elantra

Belleville, IL

Unscored
$17,96645,634 mi

Market: $16,998$20,390

Belleville, IL

No Photo

2021 Hyundai Elantra

O'fallon, IL

Unscored
$17,96645,634 mi

Market: $16,998$20,390

O'fallon, IL

No Photo

2021 Hyundai Elantra

Shiloh, IL

Unscored
$17,96645,634 mi

Market: $16,998$20,390

Shiloh, IL

No Photo

2021 Hyundai Elantra

Springfield, IL

Unscored
$17,99876,328 mi

Market: $13,499$14,098

Springfield, IL

No Photo

2021 Hyundai Elantra

Des Plaines, IL

Fair Price
$16,48953,196 mi

Market: $11,889$21,990

Fairly priced — in line with the typical market range in the Des Plaines market for similar vehicles · 27 days on lot (based on current market benchmarks)

Des Plaines, IL

No Photo

2021 Hyundai Elantra

Des Plaines, IL

Fair Price
$18,03540,381 mi

Market: $11,889$21,990

Fairly priced — in line with the typical market range in the Des Plaines market for similar vehicles · 27 days on lot (based on current market benchmarks)

Des Plaines, IL

No Photo

2021 Hyundai Elantra

Chicago, IL

Fair Price
$20,89322,390 mi

Market: $11,889$21,990

Fairly priced — in line with the typical market range in the Chicago market for similar vehicles · 6 days on lot (based on current market benchmarks)

Chicago, IL

No Photo

2021 Hyundai Elantra

Des Plaines, IL

Fair Price
$20,89322,390 mi

Market: $11,889$21,990

Fairly priced — in line with the typical market range in the Des Plaines market for similar vehicles · 6 days on lot (based on current market benchmarks)

Des Plaines, IL

No Photo

2021 Hyundai Elantra

Libertyville, IL

Overpriced
$20,89322,390 mi

Market: $11,889$19,385

Priced ~34% above the typical market range in the Libertyville market for similar vehicles (based on current market benchmarks)

Libertyville, IL

No Photo

2021 Hyundai Elantra

Naperville, IL

Fair Price
$20,89322,390 mi

Market: $11,889$21,990

Fairly priced — in line with the typical market range in the Naperville market for similar vehicles · 6 days on lot (based on current market benchmarks)

Naperville, IL

No Photo

2021 Hyundai Elantra

Westmont, IL

Fair Price
$20,89322,390 mi

Market: $11,889$21,990

Fairly priced — in line with the typical market range in the Westmont market for similar vehicles · 6 days on lot (based on current market benchmarks)

Westmont, IL

No Photo

2021 Hyundai Elantra

Matteson, IL

Fair Price
$15,37597,868 mi

Market: $11,889$21,990

Fairly priced — in line with the typical market range in the Matteson market for similar vehicles · 13 days on lot (based on current market benchmarks)

Matteson, IL

No Photo

2021 Hyundai Elantra

Wilmington, IL

Fair Price
$15,37597,868 mi

Market: $11,889$21,990

Fairly priced — in line with the typical market range in the Wilmington market for similar vehicles · 11 days on lot (based on current market benchmarks)

Wilmington, IL

No Photo

2021 Hyundai Elantra

Bloomington, IL

Unscored
$15,49562,149 mi

Market: $15,495$15,495

Bloomington, IL

No Photo

2021 Hyundai Elantra

Aurora, IL

Fair Price
$13,99596,066 mi

Market: $11,889$21,990

Fairly priced — in line with the typical market range in the Aurora market for similar vehicles · 57 days on lot (based on current market benchmarks)

Aurora, IL

No Photo

2021 Hyundai Elantra

Peoria, IL

Unscored
$14,098112,724 mi

Market: $14,098$14,098

Peoria, IL

No Photo

2021 Hyundai Elantra

Springfield, IL

Unscored
$14,098113,031 mi

Market: $14,098$14,098

Springfield, IL

No Photo

2021 Hyundai Elantra

University Park, IL

Overpriced
$21,99015,077 mi

Market: $11,889$20,893

Priced ~34% above the typical market range in the University Park market for similar vehicles (based on current market benchmarks)

University Park, IL

No Photo

2021 Hyundai Elantra

Oak Lawn, IL

Fair Price
$19,38530,379 mi

Market: $11,889$21,990

Fairly priced — in line with the typical market range in the Oak Lawn market for similar vehicles · 16 days on lot (based on current market benchmarks)

Oak Lawn, IL

No Photo

2021 Hyundai Elantra

Glendale Heights, IL

Fair Price
$15,159103,470 mi

Market: $11,889$21,990

Fairly priced — in line with the typical market range in the Glendale Heights market for similar vehicles · 6 days on lot (based on current market benchmarks)

Glendale Heights, IL

Other vehicle markets in Illinois