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Buick Cars for Sale in O'fallon, MO

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Items 1 to 2 of 16.
    Sponsored by O'Fallon Buick GMC
    New 2026 Buick Envista Sport Touring w/ Convenience I Package
    28,879
    MSRP$28,280
    Dealer Logo
    62View Vehicles

    1,929 Matches

    New 2026 Buick Encore GX Preferred
    New
    • Preferred
    • 6 mi
    26,733
    MSRP$28,885
    New 2026 Buick Encore GX Sport Touring w/ Advanced Technology Package
    New
    • Sport Touring
    • 4 mi
    27,147
    MSRP$31,975
    New 2026 Buick Encore GX Sport Touring w/ Comfort Package
    New
    • Sport Touring
    • 6 mi
    25,570
    MSRP$30,285
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    Based on 4.5% APR for mos.
    Used 2025 Buick Envista Avenir
    Used
    • Avenir
    • 5K mi
    27,240
    Great Price
    Used 2017 Buick Encore Essence
    Used
    • Essence
    • 63K mi
    15,016
    Good Price
    Used 2020 Buick Encore GX Essence
    Used
    • Essence
    • 33K mi
    20,425
    Great Price
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    Used 2023 Buick Encore GX Select w/ Safety Package II
    Used
    • Select
    • 31K mi
    22,544
    Good Price
    Item 1 of 4.
    New
    • Sport Touring
    • 7 mi
    39,815
    MSRP$45,495
    Used 2024 Buick Envista Avenir
    Used
    • Avenir
    • 25K mi
    24,617
    Great Price
    Used 2025 Buick Envista Sport Touring
    Used
    • Sport Touring
    • 18 mi
    26,949
    Great Price
    Used 2018 Buick Regal Preferred
    Used
    • Preferred
    • 87K mi
    14,066
    Great Price
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    Used 2024 Buick Envista Sport Touring w/ Convenience I Package
    Used
    • Sport Touring
    • 28K mi
    24,843
    Great Price
    Used 2025 Buick Encore GX Preferred
    Used
    • Preferred
    • 71 mi
    23,794
    Great Price
    Used 2022 Buick Enclave Essence w/ Experience Buick Package
    Used
    • Essence
    • 49K mi
    27,594
    Great Price
    Used 2023 Buick Enclave Essence w/ Experience Buick Package
    Used
    • Essence
    • 26K mi
    33,617
    Good Price
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    Used 2024 Buick Enclave Essence w/ Experience Buick Package
    Used
    • Essence
    • 18K mi
    39,949
    Good Price
    Used 2023 Buick Encore GX Preferred w/ Cold Weather Comfort Package
    Used
    • Preferred
    • 17K mi
    22,516
    Great Price
    Used 2025 Buick Encore GX Preferred
    Used
    • Preferred
    • 2K mi
    23,900
    Used 2025 Buick Encore GX Sport Touring w/ Comfort Package
    Used
    • Sport Touring
    • 2K mi
    24,870
    Great Price
    Used 2023 Buick Envision Preferred w/ Sport Touring Package
    Used
    • Preferred
    • 32K mi
    26,508
    Good Price
    Used 2019 Buick Enclave Essence
    Used
    • Essence
    • 41K mi
    22,549
    Great Price
    Used 2023 Buick Encore GX Essence w/ Experience Buick Package
    Used
    • Essence
    • 15K mi
    25,070
    Great Price
    Used 2023 Buick Encore GX Select w/ Safety Package II
    Used
    • Select
    • 35K mi
    22,016
    Good Price
    Used 2023 Buick Envision Avenir
    Used
    • Avenir
    • 22K mi
    32,386
    Great Price
    Used 2025 Buick Enclave Sport Touring w/ Trailering Package, 5000 lbs.
    Used
    • Sport Touring
    • 431 mi
    41,894
    Great Price
    Used 2022 Buick Envision Essence w/ Safety Package
    Used
    • Essence
    • 31K mi
    25,079
    Great Price
    Used 1996 Buick Roadmaster Estate
    Used
    • Estate
    • 168K mi
    5,000
    Used 2023 Buick Envision Preferred
    Used
    • Preferred
    • 64K mi
    22,593

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