Used Buick for Sale in Ontario, CA

Browse 47 used Buick listings for sale in Ontario, CA from dealers near you.

2026 Sport Touring

Buick Enclave

$45,940

4,218 mi · suv

Mark Christopher Auto Center · Ontario, CA

2026 Sport Touring

Buick Enclave

$45,340

4,383 mi · suv

Mark Christopher Auto Center · Ontario, CA

2026 Preferred

Buick Enclave

$45,140

5 mi · suv

Mark Christopher Auto Center · Ontario, CA

2026 Sport Touring

Buick Enclave

$44,186

8,422 mi · suv

Mark Christopher Auto Center · Ontario, CA

2026 Sport Touring

Buick Enclave

$43,602

11,890 mi · suv

Mark Christopher Auto Center · Ontario, CA

2026 Sport Touring

Buick Enclave

$47,240

5 mi · suv

Mark Christopher Auto Center · Ontario, CA

2026 Sport Touring

Buick Enclave

$46,640

5 mi · suv

Mark Christopher Auto Center · Ontario, CA

2026 Sport Touring

Buick Enclave

$46,145

5 mi · suv

Mark Christopher Auto Center · Ontario, CA

2026 Preferred

Buick Enclave

$45,140

5 mi · suv

Mark Christopher Auto Center · Ontario, CA

2026 Sport Touring

Buick Enclave

$48,640

5 mi · suv

Mark Christopher Auto Center · Ontario, CA

2026 Preferred

Buick Enclave

$44,645

5 mi · suv

Mark Christopher Auto Center · Ontario, CA

2026 Sport Touring

Buick Encore GX

$26,695

5 mi · suv

Mark Christopher Auto Center · Ontario, CA

2026 Sport Touring

Buick Encore GX

$28,585

2 mi · suv

Mark Christopher Auto Center · Ontario, CA

2026 Sport Touring

Buick Encore GX

$27,385

2 mi · suv

Mark Christopher Auto Center · Ontario, CA

2026 Preferred

Buick Encore GX

$26,285

2 mi · suv

Mark Christopher Auto Center · Ontario, CA

2026 Preferred

Buick Encore GX

$25,790

2 mi · suv

Mark Christopher Auto Center · Ontario, CA

2026 Sport Touring

Buick Encore GX

$26,695

5 mi · suv

Mark Christopher Auto Center · Ontario, CA

2026 Preferred

Buick Encore GX

$25,890

2 mi · suv

Mark Christopher Auto Center · Ontario, CA

2026 Preferred

Buick Encore GX

$25,890

2 mi · suv

Mark Christopher Auto Center · Ontario, CA

2026 Sport Touring

Buick Encore GX

$26,695

5 mi · suv

Mark Christopher Auto Center · Ontario, CA

2023 Select

Buick Encore GX

$19,985

16,578 mi · suv

Mark Christopher Auto Center · Ontario, CA

2026 Sport Touring

Buick Envision

$41,990

2 mi · suv

Mark Christopher Auto Center · Ontario, CA

2026 Sport Touring

Buick Envision

$41,495

2 mi · suv

Mark Christopher Auto Center · Ontario, CA

2026 Preferred

Buick Envision

$38,995

2 mi · suv

Mark Christopher Auto Center · Ontario, CA