$42 Car Rental O'Fallon, IL

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

Renting a car in O'Fallon gives you the freedom and flexibility to explore the city and its surroundings at your own pace. This option is particularly popular among road trippers, family travelers, and business travelers, as it allows for easy luggage management and flexible travel plans. With a rental car, you can conveniently visit key attractions like the Gateway Arch and Gateway Arch National Park, both located 15 miles away, or explore the fascinating Cahokia Mounds State Historic Site just 10 miles from O'Fallon.

Additionally, you can venture into nearby cities such as St. Louis, 16 miles away, which offers rich cultural experiences and outdoor spaces, or Shiloh, only 2 miles away, featuring McKendree University and Shiloh Dog Park. Fairview Heights, located 5 miles from O'Fallon, is another great stop with access to the same key attractions. A rental car ensures that whether you're planning a family outing or a business trip, you can comfortably navigate the area and make the most of your visit.

Most popular car rentals in O'Fallon

• Midsize SUV: This vehicle option fits up to 5 travelers and accommodates up to 3 large suitcases, making it a fantastic choice for families, couples, or small groups. The Midsize SUV offers ample space for both passengers and luggage, ensuring a comfortable ride while exploring the attractions around O'Fallon. With its robust build and versatile features, it is perfect for road trips where comfort and capacity are essential.
• Economy: Ideal for solo travelers, couples, or families, the Economy car fits 5 travelers and can hold up to 2 medium suitcases. This option is budget-friendly and easy to maneuver, making it suitable for navigating the city and surrounding areas. Enjoy the flexibility of exploring O'Fallon at your own pace without compromising on comfort or convenience.
• Fullsize: The Fullsize car is designed to fit 5 travelers with the capacity for either 3 large suitcases or 5 medium suitcases, making it a great choice for families or groups. This option ensures that you have enough space for luggage while providing a comfortable driving experience. If you're planning to travel with more than a few bags or enjoy extra legroom, the Fullsize car is an excellent option for your adventures in and around O'Fallon.

Top rated car suppliers in O'Fallon

• Hertz: Hertz is a popular choice for travelers in O'Fallon, offering one rental location in the area. Many customers appreciate the selection of Midsize SUVs and Economy cars, which cater to a variety of travel needs. Hertz is known for its reliable vehicles and efficient rental process, making it a great option for those looking to explore the attractions around O'Fallon at their own pace.
• Enterprise: With a strong reputation for customer service, Enterprise also has a rental location in O'Fallon. This supplier is favored for its Midsize and Fullsize vehicles, appealing to both families and business travelers. Customers often highlight the friendly staff and smooth rental experience, allowing you to manage your itinerary and luggage comfortably while enjoying your trip.
• Dollar Rent A Car: Dollar Rent A Car is another excellent option in O'Fallon, offering a rental location in the vicinity. Travelers frequently choose Midsize SUVs and Fullsize cars from this supplier. Dollar is recognized for providing quality vehicles and a straightforward rental process, making it a reliable choice for those embarking on a road trip to explore the surrounding areas.

Where to go around O'Fallon

• St. Louis: Located 16 miles away from O'Fallon, St. Louis is a vibrant metropolis offering a variety of attractions suitable for family, outdoor, and city experiences. Key highlights include the iconic Gateway Arch, a cultural monument, and Forest Park, an urban park perfect for outdoor activities. The Enterprise Center serves as an arena entertainment facility, hosting various events throughout the year. The peak travel months are June to August, making it an ideal time to explore the city's cultural and recreational offerings.
• Shiloh: Just 2 miles from O'Fallon, Shiloh is a charming city with attractions that cater to families and outdoor enthusiasts. Visitors can enjoy the Shiloh Dog Park for recreational activities and explore the educational opportunities at McKendree University. The city also features beautiful parks and a nearby lake, providing a peaceful escape. Travel peaks in April and June to July, making these months perfect for enjoying Shiloh's outdoor spaces and community events.
• Fairview Heights: Situated 5 miles away from O'Fallon, Fairview Heights is a bustling city known for its shopping centers and arena entertainment facilities. Notable attractions include the Cahokia Mounds State Historic Site, which offers a glimpse into the area's rich history, and the Gateway Arch, a cultural landmark. The area attracts visitors from April to July, making it a good time to explore its vibrant shopping scene and community activities.

10 tips to save on your O'Fallon car hire

1. Use filters to find the right car: Refine your search by selecting vehicle types and desired features. Whether you're looking for an SUV for extra space, a convertible for summer fun, or an economical car for budget-friendly travel, utilize the filters on Expedia to discover the best option for your journey.
2. Book in advance to help lower costs: Rental rates can vary based on demand, so it's advisable to reserve your car well ahead of your trip. By booking early, you are more likely to secure lower prices and better availability, particularly during peak travel seasons.
3. Consider a smaller car for savings: Generally, smaller cars are less expensive 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 surcharges, and certain vehicle types—such as SUVs or premium models—might not be available. This policy can also apply to renters over 70 years old. Always verify the age requirements before finalizing your booking.
5. Check fuel policies: Some rental agreements require a full-to-full fuel policy, meaning you must return the vehicle with a full tank to avoid additional fees. This is typically the most favorable option. Others may provide full-to-empty or prepaid fueling choices, which are acceptable as well. Just ensure you return the car empty in this scenario.
6. Save on city and airport pickups: You may encounter a surcharge when picking up your rental car at airports, but the added convenience might justify the 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 unexpected expenses and provide peace of mind in case something unforeseen occurs during your trip. Adding car rental insurance is straightforward when booking through Expedia.
9. Consider unlimited mileage: If you plan to take long road trips, seek 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 vehicle.

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

The best time to rent a car in and around O'Fallon is January and February, when both prices and demand are slightly low. During this period, you can enjoy quieter roads and better rates. March and April also offer average prices with slightly low to average demand, making them good shoulder months. However, June through August see higher prices and increased demand, especially in June, which is typically the most expensive month for rentals in the area.

Calendar Month	Temperature	Precipitation	Cloudiness	Demand	Pricing
January	31.6°F (-0.2°C)	Light Rain	Mostly Cloudy	Slightly Low	Slightly Low
February	34.9°F (1.6°C)	Light Rain	Mostly Sunny	Slightly Low	Slightly Low
March	46.2°F (7.9°C)	Light Rain	Mostly Sunny	Slightly Low	Average
April	55.8°F (13.2°C)	Light Rain	Mostly Sunny	Average	Average
May	66.2°F (19.0°C)	Light Rain	Mostly Sunny	Average	Slightly High
June	75.6°F (24.2°C)	Light Rain	Mostly Sunny	Slightly High	Slightly High
July	77.9°F (25.5°C)	Light Rain	Mostly Sunny	Slightly High	Slightly High
August	76.1°F (24.5°C)	Light Rain	Mostly Sunny	Slightly High	Average
September	70.2°F (21.2°C)	Light Rain	Mostly Sunny	Average	Average
October	58.3°F (14.6°C)	Light Rain	Mostly Sunny	Average	Average
November	45.9°F (7.7°C)	Light Rain	Mostly Sunny	Average	Average
December	37.6°F (3.1°C)	Light Rain	Mostly Sunny	Average	Slightly Low

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 $42.

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.

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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