$40 Car Rental Lake St Louis, MO

Reasons to book a car rental in and around Lake St Louis

Renting a car in Lake St Louis provides the freedom and flexibility to explore the area at your own pace. With a rental car, you can easily manage your luggage and create flexible travel plans, making it an ideal choice for families and those seeking outdoor and entertainment experiences. Within a short drive, you can visit key attractions such as the August A. Busch Memorial Conservation Area, located 5 miles away, perfect for nature enthusiasts. For a romantic day out, Innsbrook Lake, situated 15 miles from Lake St Louis, offers beautiful scenery and beach experiences. Culture seekers can explore the Historic Daniel Boone Home and Heritage Center, just 10 miles away. Additionally, a rental car allows convenient trips to nearby cities like St. Charles, 16 miles away, where you can enjoy Historic Main Street, or Chesterfield, 15 miles away, home to the Sophia M. Sachs Butterfly House and Six Flags St. Louis. Wentzville, only 4 miles from Lake St Louis, provides easy access to attractions like the conservation area and historic sites. A rental car ensures you can make the most of your time in and around Lake St Louis.

Where to stay around Lake St Louis

• O'Fallon: Located only 5 miles from Lake St Louis, O'Fallon is an excellent choice for families and outdoor enthusiasts. This vibrant city offers access to various attractions, including the Westport Plaza, a great spot for shopping and dining. Explore the Historic Main Street for a taste of local charm, or visit the August A. Busch Memorial Conservation Area for nature trails and wildlife. With plenty of food and drink options, including wineries and restaurants, O'Fallon is perfect for a fun-filled stay.
• St. Charles: Situated 16 miles from Lake St Louis, St. Charles is ideal for those seeking a romantic and city-themed experience. The city is rich in history, featuring the charming Historic Main Street and venues for arena entertainment and theater. Visitors can also explore Westport Plaza for shopping and dining options. St. Charles offers nearby wineries and restaurants, making it a delightful destination for food and drink enthusiasts. Enjoy the beautiful Forest Park for outdoor activities, perfect in the warmer months.
• Chesterfield: Located 15 miles from Lake St Louis, Chesterfield is a city bursting with entertainment options. Families will appreciate the thrill of Six Flags St. Louis and the peaceful surroundings of the Sophia M. Sachs Butterfly House. For those interested in history and culture, Faust Park offers a glimpse into the past. Chesterfield boasts numerous dining venues, including wineries and restaurants, making it a well-rounded destination for your stay. The city is particularly enjoyable in spring and summer when outdoor activities abound.

10 tips to save on your car rental in and around Lake St Louis

1. Use filters to find the right car: Refine your search by vehicle type and features. Whether you need an SUV for extra space, a convertible for summer fun, or an economical car for budget-friendly travel, utilize the filters on Expedia to find the perfect match for your journey.
2. Book in advance to help lower costs: Rental prices can vary with demand, so it's wise to reserve your car well ahead of your trip. Booking early often allows you to lock in lower rates and ensures better availability, especially during peak travel seasons.
3. Consider a smaller car for savings: Smaller vehicles are typically more affordable to rent and easier to maneuver in crowded areas. Mid-size rentals strike a good balance between cost, comfort, and fuel efficiency.
4. Age guidelines: Drivers under 30 may encounter higher deposits or daily fees, and specific vehicle types—such as SUVs or premium models—might not be available. This policy can also apply to renters over 70. Always verify the age requirements before making a reservation.
5. Check fuel policies: Some rental agreements require a full-to-full fuel policy, meaning you must return the car with a full tank to avoid additional charges. This is usually the most economical choice. Others may offer full-to-empty or prepaid fueling options, which are acceptable as well. Just be sure to return the car empty in those cases.
6. Save on city and airport pickups: Picking up your rental car at airports often incurs a surcharge, but the convenience may make it worthwhile.
7. Know your payment options: Many car rental companies only accept credit cards as a form of payment.
8. Understand your insurance coverage: Car rental insurance can help you avoid unexpected expenses and provides peace of mind in case of unforeseen events during your trip. Adding car rental insurance is a simple process when booking with Expedia.
9. Consider unlimited mileage: If you're planning lengthy road trips, look for rentals that offer unlimited mileage to prevent incurring extra charges.
10. Bring your driver's license and ID: A valid driver's license is necessary to rent a car.

Finding the cheapest car rentals in Lake St Louis

Using our Search Wizard

If the deals that are available on our page do not suit your needs, then enter Lake St Louis into the search wizard at the top of the page. We will compare all the best deals available for your car rental in Lake St Louis and provide you with a list of the cheapest options, with no added fees.

Renting a car in Lake St Louis

Pay at pickup is available, so you don’t have to worry about spending your money until you arrive at your vehicle in Lake St Louis. We partner with reliable partners that guarantee an enjoyable experience for solo travelers, couples, and families. Package your car with a flight or hotel to unlock even more savings from Expedia.

Expected prices in Lake St Louis

Prices are subject to seasonal change depending on when you decide to arrange your car rental but right now you can book from $40.

Flexibility & Cancellation

Most car suppliers offer penalty-free cancellations, so you don’t have to worry about losing money if your plans change. To cancel your booking log into your account through the Trips portal. Click manage booking and cancel this car. If you needed to alter your booking, then you can create a new one once you have canceled.

We all love being rewarded

One Key members save 10% or more on select hotels, cars, activities and vacation rentals. Not only that, earn OneKeyCash for every dollar spent on eligible hotels, vacation rentals, flights, car rentals, and more when you book across our family of brands: Expedia, Hotels.com and VRBO. Learn more and join today.

Car classes available from Expedia in 2026

The classes of vehicles available will change depending on your chosen location.

• Compact car rentals    
• Convertible car rentals    
• Economy car rentals    
• Fullsize car rentals    
• Luxury car rentals
• Midsize car rentals    
• Mini car rentals    
• Minivan rentals    
• Pickup car rentals    
• Premium car rentals
• Sportscar rentals    
• Standard car rentals    
• SUV rentals    
• Van rentals