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Spider

Luxury

Sport Utility

4-Cylinder Turbo

Gasoline

Buick

Enclave

Super Cruise Package

Power Package

LPO, Floor Liner Package

License Plate Bracket, Front Mounting Package

New 2025 Buick Enclave Preferred w/ Super Cruise Package

New 2025 Buick Enclave Preferred w/ Super Cruise Package O Fallon MO 63368

Automatic

Preferred

Sedan

AWD4WD

6-Cylinder Turbo

Used

Mercedes-Benz

E 450

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Used 2021 Mercedes-Benz E 450 4MATIC Sedan

Used 2021 Mercedes-Benz E 450 4MATIC Sedan O Fallon MO 63368

4MATIC Sedan

Midsize

Chevrolet

Equinox

Sun, Sound & Navigation Package

Confidence & Convenience II Package

License Plate Front Mounting Package

Used 2018 Chevrolet Equinox Premier

Used 2018 Chevrolet Equinox Premier O Fallon MO 63368

Premier

Regal

Driver Confidence Package #1

Used 2016 Buick Regal Premium w/ Driver Confidence Package #1

Used 2016 Buick Regal Premium w/ Driver Confidence Package #1 O'fallon IL 62269

Premium

Fullsize

6-Cylinder

LaCrosse

Sun and Shade Package

Sights and Sounds Package

Used 2017 Buick LaCrosse Essence w/ Sun and Shade Package

Used 2017 Buick LaCrosse Essence w/ Sun and Shade Package O Fallon MO 63368

Essence

Envision

Technology Package I

Used 2021 Buick Envision Essence w/ Technology Package I

Used 2021 Buick Envision Essence w/ Technology Package I O Fallon MO 63368

Fullsize Crew Cab

Truck

8-Cylinder

Sierra 1500

SLT Premium Package

Used 2022 GMC Sierra 1500 SLT w/ SLT Premium Package

Used 2022 GMC Sierra 1500 SLT w/ SLT Premium Package O Fallon MO 63368

Diesel

1500

Convenience Group

Trailer Tow Mirrors & Brake Group

Used 2017 RAM 1500 Laramie w/ Convenience Group

Used 2017 RAM 1500 Laramie w/ Convenience Group O Fallon MO 63368

Laramie

Used 2014 Buick Regal

Used 2014 Buick Regal Saint Louis MO 63128

Used 2023 Buick Envision Avenir

Used 2023 Buick Envision Avenir O Fallon MO 63368

Avenir

Compact

3-Cylinder Turbo

Encore GX

Hands-Free Power Liftgate Package

Used 2021 Buick Encore GX Select

Used 2021 Buick Encore GX Select O Fallon MO 63368

Select

Envista

Convenience I Package

Convenience II Package

Advanced Safety Package

Used 2024 Buick Envista Preferred w/ Convenience I Package

Used 2024 Buick Envista Preferred w/ Convenience I Package O Fallon MO 63368

Compact Crew Cab

Colorado

Advanced Trailering Package

Trail Boss Convenience Package II

Safety Package

Trail Boss Convenience Package

Used 2024 Chevrolet Colorado Trail Boss w/ Advanced Trailering Package

Used 2024 Chevrolet Colorado Trail Boss w/ Advanced Trailering Package O Fallon MO 63368

Trail Boss

Used 2016 Buick Regal

Used 2016 Buick Regal Shiloh IL 62269

Used 2017 Buick Regal Sport Touring

Used 2017 Buick Regal Sport Touring Alton IL 62002

Sport Touring

Experience Buick Package

Advanced Technology Package

Used 2020 Buick Encore GX Essence w/ Experience Buick Package

Used 2020 Buick Encore GX Essence w/ Experience Buick Package O Fallon MO 63368

O'Fallon Buick GMC

St Louis

Used Cars for Sale

Test drive Used Buick Regal at home in Saint Louis, MO.Used Buick Regal cars for sale, including a  2014 Buick Regal, a  2016 Buick Regal, and a  2016 Buick Regal Premium ranging in price from $9,985 to $14,667.

Used Buick Regal for Sale in Saint Louis, MO - Autotrader

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Search from 4 Buick Regal for sale, including a Used 2014 Buick Regal, a Used 2016 Buick Regal, and a Used 2016 Buick Regal Premium w/ Driver Confidence Package #1 ranging in price from $9,985 to $14,667.

Autotrader has 4 Buick Regal for sale near Saint Louis, MO, including a Used 2014 Buick Regal, a Used 2016 Buick Regal, and a Used 2016 Buick Regal Premium w/ Driver Confidence Package #1 ranging in price from $9,985 to $14,667.

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Used Buick Regal for Sale in Saint Louis, MO

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2016 Buick Regal

2016 Buick Regal

2017 Buick Regal

2014 Buick Regal