$57 Car Rental St. Marys, OH

These St. Marys insights are based on real traveler data from Expedia, aggregated using AI to help you plan your trip. Updated: August 18, 2026.

Reasons to book a car rental in and around St. Marys

Renting a car in St. Marys offers you the freedom and flexibility to explore the area at your own pace. With a rental car, you can easily manage your luggage and adjust your travel plans as needed. This convenience is particularly appealing for those looking to enjoy outdoor activities, scenic views, or romantic experiences. You can visit key attractions such as Grand Lake St Marys State Park, which is perfect for adventure seekers, or the Auglaize County Historical Museum for a taste of local culture. Families can enjoy a day at Rolling Hills Park, an urban park suitable for various outdoor activities. Additionally, a rental car allows you to explore nearby cities like Celina and Wapakoneta, both just 10 miles away, where you can find parks, museums, and more. New Knoxville is also a quick 5 miles from St. Marys, offering its own community park and historical sites. With a rental car, your trip is tailored to your interests, making it easier to experience everything St. Marys and its surroundings have to offer.

Where to stay around St. Marys

• Celina: Located 10 miles from St. Marys, Celina offers a scenic and romantic experience for travelers. With key attractions like the Mercer County Fairgrounds, known for outdoor family activities, and the beautiful Grand Lake, it's an ideal spot for those who enjoy nature. Visitors can explore Mercelina Park for outdoor fun or the Rotary Lighthouse for picturesque views. Celina also features local wineries and distilleries, perfect for tasting local flavors.
• Wapakoneta: Also 10 miles from St. Marys, Wapakoneta is a great destination for adventure seekers. Notable highlights include the Armstrong Air and Space Museum, providing an educational experience for all ages, and the Grand Lake St Marys State Park, ideal for outdoor activities and exploring nature. The city's vibrant dining scene includes various restaurants and wineries, making it a delightful stop for food enthusiasts.
• New Knoxville: Just 5 miles away from St. Marys, New Knoxville is perfect for those seeking outdoor activities and romantic scenery. The New Knoxville Community Park offers a tranquil environment for family outings, while the Grand Lake St Marys State Park provides ample opportunities for adventure. Culture lovers can explore the Auglaize County Historical Museum to learn about local history. This charming city is known for its eco-friendly practices, making it a unique travel choice.

10 tips to save on your car rental in and around St. Marys

1. Use filters to find the right car: Refine your search by selecting vehicle types and features. Whether you need an SUV for additional space, a convertible for summer drives, or an economy car for budget-friendly options, utilize filters on Expedia to discover the best fit 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 travel date. By booking early, you're more likely to secure lower rates and enjoy a wider selection, particularly during peak seasons.
3. Consider a smaller car for savings: Typically, smaller vehicles 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 fees, and certain vehicle types—such as SUVs or luxury models—might not be available. This could also apply to renters over 70 years old. Always verify age requirements before making a reservation.
5. Check fuel policies: Some rentals may follow a full-to-full fuel policy, which requires you to return the car with a full tank to avoid extra fees. This is often the most economical choice. Other options may include full-to-empty or prepaid fueling, which are acceptable as well—just remember to return the car empty in those cases.
6. Save on city and airport pickups: Picking up your rental car at airports often incurs an additional fee, but the 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 unforeseen expenses and provides peace of mind if unexpected situations arise during your trip. It's easy to add rental insurance when booking through Expedia.
9. Consider unlimited mileage: If you plan on taking long road trips, seek rentals that offer unlimited mileage to prevent incurring additional 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 St. Marys

Using our Search Wizard

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

Renting a car in St. Marys

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

Prices are subject to seasonal change depending on when you decide to arrange your car rental but right now you can book from $57.

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