Contact Us for Used Cars, Financing Needs—Leading Used Car Dealership

1201 W Terra Ln,
O Fallon, MO 63366

(636) 294-7277

Monday : 10:00 AM - 7:00 PM
Tuesday : 10:00 AM - 6:00 PM
Wednesday : 10:00 AM - 7:00 PM
Thursday : 10:00 AM - 6:00 PM
Friday 10:00 AM - 6:00 PM
Saturday : 9:00 AM - 5:00 PM
Sunday : Closed

How You Can Reach Us?

Do you have questions or comments for us? We’d love to hear them! Fill out the form below and we will get back to you as soon as possible.

If you need help with any aspect of the buying process, please don’t hesitate to ask us. Our customer service representatives will be happy to assist you in any way. Whether through email, phone or in person, we’re here to help you get the customer service you deserve.

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We’re Here to Help You Drive Home Happy

At Interstate Auto Sales, we pride ourselves on offering the best used car inventory in the area—and we want to make your buying experience as smooth and transparent as possible. Whether you’re ready to schedule a test drive or have questions about your financing options, don’t hesitate to reach out.

Affordable Car Dealership: We’re committed to providing high-quality, budget-friendly used vehicles.

Personalized Support: Our staff is knowledgeable, friendly, and here to guide you — from choosing the right car to arranging paperwork.

Welcome to the direct contact page for Interstate Auto Sales LLC, your trusted partner for quality pre-owned vehicles. Whether you’re researching a specific model, need fast financing information, or want to schedule a test drive today, our dedicated team is here to help. Contact us using the method that is most convenient for you.

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