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Used Buick Cars for Sale in O Fallon, MO

63366
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Items 1 to 2 of 15.
    Sponsored by O'Fallon Buick GMC
    Used 2024 Buick Enclave Essence
    30,600
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    43View Vehicles

    378 Matches

    Used 2019 Buick Encore Preferred w/ Safety Package
    Used
    • Preferred
    • 33K mi
    16,185
    Used 2023 Buick Encore GX Preferred w/ Sport Touring Package
    Used
    • Preferred
    • 41K mi
    19,498
    Used 2025 Buick Encore GX Sport Touring w/ Comfort Package
    Used
    • Sport Touring
    • 1K mi
    25,956
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    Based on 4.5% APR for mos.
    Used 2022 Buick Encore GX Preferred
    Used
    • Preferred
    • 26K mi
    19,495
    Used 2017 Buick Cascada Premium
    Used
    • Premium
    • 75K mi
    14,900
    Used 2026 Buick Enclave Avenir w/ Super Cruise Package
    Used
    • Avenir
    • 1K mi
    53,900
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    Used 2016 Buick Encore Convenience
    Used
    • Convenience
    • 83K mi
    10,755
    Item 1 of 4.
    Used
    • Sport Touring
    • 11K mi
    31,590
    Used 2024 Buick Enclave Essence w/ Experience Buick Package
    Used
    • Essence
    • 27K mi
    33,965
    Used 2021 Buick Enclave Essence
    Used
    • Essence
    • 41K mi
    26,623
    Used 2022 Buick Envision Avenir w/ Technology Package II
    Used
    • Avenir
    • 24K mi
    27,390
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    Used 2023 Buick Envision Preferred
    Used
    • Preferred
    • 25K mi
    24,724
    Used 2023 Buick Enclave Essence w/ Sport Touring Edition
    Used
    • Essence
    • 29K mi
    33,674
    Used 2026 Buick Envista Sport Touring w/ Convenience I Package
    Used
    • Sport Touring
    • 1K mi
    28,766
    Used 2024 Buick Envista Avenir
    Used
    • Avenir
    • 25K mi
    25,500
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    Used 2023 Buick Enclave Essence w/ Experience Buick Package
    Used
    • Essence
    • 26K mi
    31,997
    Used 1996 Buick Roadmaster Estate
    Used
    • Estate
    • 168K mi
    6,000
    Used 2022 Buick Encore GX Essence w/ Experience Buick Package
    Used
    • Essence
    • 51K mi
    21,021
    Used 2023 Buick Encore GX Select w/ Safety Package II
    Used
    • Select
    • 14K mi
    23,500
    Used 2025 Buick Envision Sport Touring
    Used
    • Sport Touring
    • 584 mi
    35,873
    Used 2016 Buick Enclave Convenience w/ Trailering Package
    Used
    • Convenience
    • 143K mi
    9,610
    Used 2023 Buick Encore GX Select w/ Sport Touring Package
    Used
    • Select
    • 24K mi
    23,709
    Used 2023 Buick Encore GX Preferred w/ Cold Weather Comfort Package
    Used
    • Preferred
    • 31K mi
    20,455
    Used 2023 Buick Encore GX Essence w/ Advanced Technology Package
    Used
    • Essence
    • 17K mi
    23,898
    Used 2017 Buick Enclave Leather
    Used
    • Leather
    • 65K mi
    16,000
    Used 2014 Buick Enclave Leather
    Used
    • Leather
    • 115K mi
    10,900
    Used 2017 Buick Enclave Leather w/ Enclave Sport Touring Edition
    Used
    • Leather
    • 97K mi
    12,220
    Used 2023 Buick Envision Essence w/ Sport Touring Package
    Used
    • Essence
    • 17K mi
    28,820
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