$38 Car Rental O'Fallon, MO

Reasons to book a car rental in and around O'Fallon

Renting a car in O'Fallon offers you the freedom to explore the city and its surroundings at your own pace. It is an excellent option for families and those looking for city-themed or outdoor experiences. With a rental car, you can conveniently manage your luggage and travel plans. You can visit key attractions such as the Historic Main Street, located 12 miles away, or Westport Plaza, just 16 miles from O'Fallon, both ideal for city experiences. Additionally, the August A. Busch Memorial Conservation Area, situated 7 miles away, provides a great outdoor setting for those seeking nature-related activities.

Having a rental car also allows you to explore nearby cities like St. Charles, located 11 miles away, where you can enjoy more city experiences, or Chesterfield, 13 miles away, which features the Sophia M. Sachs Butterfly House and Faust Park. With the convenience of a car, you can create a flexible itinerary, making it easy to discover everything O'Fallon and its surroundings have to offer. Enjoy the comfort and ease of traveling with a rental car for a memorable trip.

Most popular car rental in O'Fallon

• Midsize SUV: The most booked option in O'Fallon, midsize SUVs are perfect for accommodating up to 5 travelers and up to 3 large suitcases. This makes them an excellent choice for families, couples, or small groups looking to explore the area comfortably. With ample space for luggage and passengers, you can enjoy the flexibility of travel plans while navigating O'Fallon and beyond at your own pace.

Top rated car suppliers in O'Fallon

• Enterprise: Enterprise is a popular choice among travelers in O'Fallon, offering a convenient rental location in the area. Known for its strong customer service, Enterprise provides a good selection of vehicles, making it easy to find the right fit for your needs. The most booked cars with this supplier are Midsize and Fullsize options, catering to various preferences. With a focus on customer satisfaction, Enterprise ensures a smooth rental experience, allowing you to explore O'Fallon at your own pace.
• Hertz: Hertz stands out with its reliable rental service in O'Fallon, featuring a dedicated location for easy access. Many travelers appreciate the variety of vehicles available, particularly Midsize SUVs and Economy cars. Hertz is recognized for its efficient pickup process and well-maintained fleet, making it a great option for those looking to navigate both city and countryside comfortably. With Hertz, you can enjoy the flexibility of managing your itinerary while exploring the attractions around O'Fallon.
• Budget: Budget is a solid choice for travelers seeking affordability and convenience in O'Fallon. With a rental location nearby, you can quickly get on the road to explore the area. Budget's most popular vehicles include Midsize SUVs and Standard SUVs, which are perfect for families or groups needing extra space. Customers appreciate the competitive rates and straightforward rental process, making it easy to enjoy your time in O'Fallon without breaking the bank.

Where to stay around O'Fallon

• St. Charles: Located 11 miles from O'Fallon, St. Charles offers a family-friendly atmosphere with a mix of city-themed and romantic experiences. Explore Historic Main Street for charming shops and eateries or enjoy events at the arena entertainment facility. Outdoor enthusiasts can visit Forest Park, ideal for family outings, while the nearby Westport Plaza provides additional dining and shopping options.
• Maryland Heights: Situated 16 miles away from O'Fallon, Maryland Heights is an exciting city that combines family fun with entertainment options. The area is home to theaters and an arena entertainment facility. Westport Plaza is a great spot for dining and shopping, while Forest Park offers outdoor activities suitable for families. This vibrant neighborhood ensures a fulfilling stay with numerous attractions nearby.
• Chesterfield: Located 13 miles from O'Fallon, Chesterfield is perfect for families and those seeking entertainment. Visit the Sophia M. Sachs Butterfly House for a delightful nature experience or enjoy the thrills at Six Flags St. Louis. Faust Park offers a glimpse into local history, making it a cultural highlight for visitors. Dining options include various restaurants and wineries, ensuring a pleasant culinary experience.

10 tips to save on your car rental in and around O'Fallon

1. Use filters to find the right car: Refine your search by vehicle type and features. Whether you need an SUV for added space, a convertible for summer enjoyment, or an economy car for budget-friendliness, utilize the filters on Expedia to help you identify the best option for your trip.
2. Book in advance to help lower costs: Rental prices can vary based on demand, so it's wise to reserve your car well ahead of your trip. By booking early, you're likely to secure lower rates and enjoy better availability, particularly during peak 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 the age of 30 may encounter higher deposits or daily surcharges, and certain vehicle types—such as SUVs or premium models—might not be accessible. This can also apply to renters over the age of 70. Always verify the age requirements prior to booking.
5. Check fuel policies: Some rentals operate under a full-to-full fuel policy, meaning you must return the car with a full tank to avoid additional charges. This is often the most advantageous option. Others may provide full-to-empty or prepaid fueling options, which are also acceptable. Just ensure you return the car empty in that case.
6. Save on city and airport pickups: There is often a surcharge for picking up your rental car at airports, but the convenience may justify the extra cost.
7. Know your payment options: Many car rental companies exclusively accept credit cards for payment.
8. Understand your insurance coverage: Car rental insurance can help you avoid unnecessary expenses and provides peace of mind in case something unexpected occurs during your trip. It's simple to add car rental insurance when booking through Expedia.
9. Consider unlimited mileage: If you're planning on taking long road trips, look for rentals that offer unlimited mileage to prevent incurring extra costs.
10. Bring your driver's license and ID: A valid driver's license is necessary to rent a car.

Best time to rent a car in and around O'Fallon

The best value period to rent a car in and around O'Fallon is February, when prices are slightly low and demand is moderately low as well. January also offers good value with similar characteristics. As spring approaches, March and April see average prices and demand, making them decent options for rentals. However, July tends to be the most expensive month, with slightly high prices and moderately high demand, making it less ideal for budget-conscious renters.

Finding the cheapest car rentals in O'Fallon

Using our Search Wizard

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

Renting a car in O'Fallon

Pay at pickup is available, so you don’t have to worry about spending your money until you arrive at your vehicle in O'Fallon. 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 O'Fallon

Prices are subject to seasonal change depending on when you decide to arrange your car rental but right now you can book from $38.

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