$148 Car Rental St. Mary, MT

These St. Mary insights are based on real traveler data from Expedia, aggregated using AI to help you plan your trip. Updated: August 25, 2026.

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

Renting a car in St. Mary, Montana, offers the freedom and flexibility to explore the stunning landscapes and attractions at your own pace. With a rental vehicle, you can easily manage your luggage while visiting nearby sites like St. Mary Lake, located just 5 miles away, perfect for outdoor and romantic experiences. For those seeking adventure, St. Mary Falls is only 9 miles from the village, providing an excellent opportunity for exploration. The scenic Garden Wall, situated 11 miles away, is ideal for outdoor enthusiasts and offers breathtaking views.

Additionally, a rental car allows you to conveniently access nearby destinations such as East Glacier Park, just 7 miles away, where you can enjoy the Glacier Park Lodge Golf Course and Two Medicine Lake. Babb, located 8 miles from St. Mary, also features beautiful spots like Iceberg Lake. Whether you are an adventure seeker, a couple looking for romance, or a traveler wanting to soak in the scenery, renting a car is a practical choice for making the most of your trip in and around St. Mary.

Where to stay around St. Mary

• East Glacier Park: Located 7 miles from St. Mary, East Glacier Park offers a blend of outdoor adventure and stunning scenery. Visitors can explore the nearby St. Mary Lake and Two Medicine Lake, both ideal for a romantic getaway or outdoor activities. For golf enthusiasts, the Glacier Park Lodge Golf Course provides a unique golfing experience amid beautiful landscapes. The area is also known for its recreational areas and hiking trails, making it a perfect spot for nature lovers.
• Browning: Situated in Browning, St. Mary provides easy access to the rich outdoor adventures the city has to offer. Explore cultural attractions like the Lodgepole Gallery and Tipi Village, or enjoy a round of golf at the Glacier Park Lodge Golf Course. Browning is also home to the Browning Branch Library, which is a great stop for families. With its access to national parks and scenic trails, Browning is an excellent base for outdoor enthusiasts.
• Babb: Just 8 miles from St. Mary, Babb is a haven for those seeking outdoor experiences. The area features stunning lakes such as St. Mary Lake, Iceberg Lake, and Fishercap Lake, perfect for scenic views and romantic outings. Babb also provides access to recreational areas and hiking trails, making it a great spot for adventure seekers. With nearby winery options, visitors can enjoy local flavors while soaking in the breathtaking surroundings.

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

1. Use filters to find the right car: Refine your search by selecting vehicle type and features. Whether you’re looking for an SUV for added space, a convertible for summer fun, or an economy car for budget-friendliness, utilize the filters on Expedia to help you discover the best option for your trip.
2. Book in advance to help lower costs: Rental prices can vary based on demand, so it's advisable to secure your car well ahead of your trip. By booking in advance, you’re likely to find lower rates and better availability, particularly during peak seasons.
3. Consider a smaller car for savings: Smaller cars typically have lower rental costs and are easier to park in crowded areas. Mid-size rentals strike a good balance between affordability, comfort, and fuel efficiency.
4. Age guidelines: Drivers under 30 may encounter higher deposits or daily fees, and certain vehicle categories—such as SUVs or luxury models—might not be available. This can also apply to renters over the age of 70. Always verify age requirements before finalizing your booking.
5. Check fuel policies: Some rentals operate under a full-to-full fuel policy, meaning you need to return the car with a full tank to avoid additional charges. 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 that case.
6. Save on city and airport pickups: Picking up your rental car at airports often incurs a surcharge, but the convenience may justify the extra cost.
7. Know your payment options: Most car rental companies exclusively accept credit cards for payment.
8. Understand your insurance coverage: Car rental insurance can help you avoid unplanned expenses and provides peace of mind in case of unexpected events during your trip. Adding car rental insurance is straightforward when booking through Expedia.
9. Consider unlimited mileage: If you're planning extended road trips, look for rental options that offer unlimited mileage to prevent extra charges.
10. Bring your driver's license and ID: A valid driver's license is mandatory to rent a car.

Finding the cheapest car rentals in St. Mary

Using our Search Wizard

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

Renting a car in St. Mary

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

Prices are subject to seasonal change depending on when you decide to arrange your car rental but right now you can book from $148.

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