(opens in new window)

Sign In

Home
Used Cars
New Cars
Private Seller Cars
Sell My Car
Instant Cash Offer
- Helpful Links
- Find Local Dealers
- Best Car Deals
- Best Truck Deals
- Best SUV Deals
- Buy Cars Online
- Car Research & News
- Research & Information
- New & Future Models
- Trim Comparisons
- Car Buying Tools
- Buying & Selling Tips
- Car Payment Calculator
- Affordability Calculator
- Car Lease Calculator
See if you can save on car insurance on KBB.com
Get a Kelley Blue Book® Instant Cash Offer
Run a free AutoCheck Vehicle History Report with Experian
AI ModeBeta

Home
Used Cars
New Cars
Private Seller Cars
Sell My Car
Instant Cash Offer
AI ModeBeta

Skip to vehicle Listings

Your next car is just a chat away. Try AI Mode

Used Cars for SaleKiaK4

Used Kia K4 for Sale in Ontario, CA

What can I help you find?

Filters (3)

Items 1 to 2 of 11.

Location & Delivery

Year

Price & Payments

Price selected

Min Price

Max Price

Price Rating

Price selected

Min Price

Max Price

Price Rating

Make, Model & Trim

Kia

Models

K4

Amanti

Borrego

Cadenza (1)

Carnival (19)

EV6 (25)

EV9 (6)

Forte (99)

Forte Koup (1)

K4 (32)

K5 (64)

K900

Niro (33)

Optima (41)

Other Kia Models

Rio (9)

Rio5

Rondo

Sedona (4)

Seltos (26)

Sephia

Sorento (72)

Soul (66)

Spectra

Spectra5

Sportage (74)

Stinger (12)

Telluride (62)

K4 Trims

Any

EX (6)

GT-Line (1)

GT-Line Turbo (1)

LX

LXS

Kia

Models

K4

Amanti

Borrego

Cadenza (1)

Carnival (19)

EV6 (25)

EV9 (6)

Forte (99)

Forte Koup (1)

K4 (32)

K5 (64)

K900

Niro (33)

Optima (41)

Other Kia Models

Rio (9)

Rio5

Rondo

Sedona (4)

Seltos (26)

Sephia

Sorento (72)

Soul (66)

Spectra

Spectra5

Sportage (74)

Stinger (12)

Telluride (62)

K4 Trims

Any

EX (6)

GT-Line (1)

GT-Line Turbo (1)

LX

LXS

Mileage

Condition (1 selected)

Certified Program

Learn more

Learn more

Certified Program

Learn more

Learn more

Color

Drive Type

Body Style

Vehicle History

Features

Fuel Type

Fuel Economy

Transmission

Cylinders

Engine Displacement

Number of Seats

Number of Doors

Purchase Options

Seller Type

32 Matches

Sort By:

360°

Used 2025 Kia K4

Used

2025 Kia K4

30K mi

20,076

Great Price

Dealer Fees Included

Sponsored by West Covina CDJR

16.92 mi. away

Price Drop

Used 2025 Kia K4

Used

2025 Kia K4

33K mi

20,995

Can be shipped to

Sponsored by Mazda Of Claremont

7.27 mi. away

Delivery

Used 2025 Kia K4

Used

2025 Kia K4

29K mi

18,983

Great Price

Dealer Fees Included

Sponsored by Raceway Nissan

19.28 mi. away

My Wallet

Find it Fast.

Keep it Affordable.

Monthly Payment

Credit Rating

Down Payment

Trade-In Value

Est. Trade-In Value

Get My Kelley Blue Book® CarValue

Amount Owed on Trade-In

Get My Payoff Quote

$

Based on 4.5% APR for mos.

Price Drop

Used 2025 Kia K4

Used

2025 Kia K4

9K mi

21,116

Great Price

Dealer Fees Included

Aaron Kia

10.15 mi. away

Used 2025 Kia K4

Used

2025 Kia K4

12K mi

20,285

Dealer Fees Included

California Motors Direct Montclair

4.82 mi. away

Online Paperwork

New 2026 Kia K4

Consider Buying New

2026 Kia K4

5 mi

24,635

Kia Downtown Los Angeles

37.59 mi. away

Advertisement

Used 2025 Kia K4

Used

2025 Kia K4

35K mi

18,995

Great Price

Dealer Fees Included

Hertz Car Sales Riverside

Buy Online

Used 2025 Kia K4

Used

2025 Kia K4

35K mi

18,995

Great Price

Dealer Fees Included

Hertz Car Sales Riverside

Buy Online

Used 2025 Kia K4

Used

2025 Kia K4

32K mi

19,274

Great Price

Dealer Fees Included

Hertz Car Sales Riverside

Buy Online

Used 2025 Kia K4

Used

2025 Kia K4

31K mi

19,363

Great Price

Dealer Fees Included

Hertz Car Sales Riverside

Buy Online

Used 2025 Kia K4

Used

2025 Kia K4

29K mi

19,499

Great Price

Dealer Fees Included

Hertz Car Sales Riverside

Buy Online

Advertisement

Used 2025 Kia K4

Used

2025 Kia K4

27K mi

19,698

Great Price

Dealer Fees Included

Hertz Car Sales Riverside

Buy Online

Used 2025 Kia K4

Used

2025 Kia K4

26K mi

19,739

Great Price

Dealer Fees Included

Hertz Car Sales Riverside

Buy Online

Used 2025 Kia K4

Used

2025 Kia K4

37K mi

19,678

Great Price

Dealer Fees Included

Rock Honda

12.38 mi. away

360°

Used 2025 Kia K4

Used

2025 Kia K4

30K mi

20,076

Great Price

Dealer Fees Included

West Covina CDJR

16.92 mi. away

Advertisement

Used 2025 Kia K4 GT-Line

Used

2025 Kia K4

GT-Line
17K mi

22,149

Great Price

Dealer Fees Included

Crown Toyota

4.28 mi. away

360°

Certified 2025 Kia K4

2025 Kia K4

4K mi

21,444

Covina Kia

15.97 mi. away

High Demand

360°

Certified 2025 Kia K4 EX

2025 Kia K4

EX
7K mi

21,444

Covina Kia

15.97 mi. away

360°

Certified 2025 Kia K4 EX w/ GT-Line Sunroof Package

2025 Kia K4

EX
523 mi

25,444

Covina Kia

15.97 mi. away

Newly Listed

Used 2025 Kia K4

Used

2025 Kia K4

27K mi

20,895

DriveTime of Montclair

5.63 mi. away

Used 2025 Kia K4

Used

2025 Kia K4

23K mi

20,251

Great Price

Dealer Fees Included

Mazda of Orange

19.33 mi. away

Used 2026 Kia K4

Used

2026 Kia K4

7K mi

21,400

Claremont Toyota

7.17 mi. away

Price Drop

Used 2025 Kia K4

Used

2025 Kia K4

28K mi

23,907

Dealer Fees Included

Moss Bros. Chrysler Jeep Dodge - Riverside

13.33 mi. away

Used 2025 Kia K4

Used

2025 Kia K4

2K mi

20,995

Pacific Auto Center

10.19 mi. away

Delivery

Used 2025 Kia K4

Used

2025 Kia K4

29K mi

19,696

Westcoast Auto Sales

4.92 mi. away

Used 2025 Kia K4 EX

Used

2025 Kia K4

EX
30K mi

19,585

Fontana Motors Direct

9.47 mi. away

Online Paperwork

Used 2025 Kia K4

Used

2025 Kia K4

29K mi

18,983

Great Price

Dealer Fees Included

Raceway Nissan

19.28 mi. away

Used 2025 Kia K4

Used

2025 Kia K4

25K mi

20,200

Claremont Toyota

7.17 mi. away

Advertisement

Similar Vehicles for Sale

Used Kia K4 Hatchbacks for Sale

Kia K4 for Sale by Year

2025 Kia K4 For Sale
31 for sale starting at $18,734

Used Kia K4 for Sale by Trim

Used Kia K4 EX For Sale
6 for sale starting at $19,585

Shop for a Car

Used Cars for Sale
Certified Cars for Sale
New Cars for Sale
For Sale By Owner
Car Deals

Sell Your Car

List Your Car for Sale
How to Sell a Car
Trade-In Values and Car Pricing from Kelley Blue Book®

About Us

About Autotrader
About Cox Automotive
Jobs at Autotrader
Become an Autotrader Dealer
Press Room
Site Map
Fraud Awareness
Contact Us

Autotrader Affiliates

Classic Cars & Trucks for Sale
Motorcycles for Sale
RVs for Sale
Cars for Bad Credit Buyers
Find Cars for Sale in Australia

Privacy Notice & Options

Privacy Notice
Do Not Sell or Share My Personal Information
Limit the Use of My Sensitive Personal Information
Manage Cookies

Download on the Apple App Store

Get it on Google Play

Follow

Autotrader, a Cox Automotive Company

By using this service, you accept the terms of our Visitor Agreement and Accessibility Statement.

©2026 Autotrader, Inc. All Rights Reserved. "Autotrader" is a registered trademark of TPI Holdings, Inc. used under exclusive license.