$39 Car Rental Boulder, CO

Reasons to book a car rental in and around Boulder

Renting a car in Boulder offers the freedom and flexibility to explore the stunning attractions in and around the city at your own pace. This is particularly appealing to outdoor enthusiasts and adventure travelers who appreciate the scenic beauty of the Flatirons, located just 2 miles away. Families on road trips will find a rental car convenient for managing luggage and ensuring comfort while traveling to destinations like the Downtown Boulder Historic District, which showcases the area's rich culture.

A car also allows easy access to nearby destinations such as Longmont, situated 14 miles from Boulder, where visitors can discover the Longmont Museum and Saint Vrain State Park. Additionally, neighborhoods such as Central Boulder and North Boulder feature attractions like the University of Colorado Boulder, making it simple to enjoy a diverse range of experiences. With a rental car, navigating Boulder’s roads becomes effortless, empowering you to make the most of your visit and explore at your leisure, whether you are seeking adventure or cultural immersion.

Most popular car rentals in Boulder

• Midsize SUV: This vehicle is a favorite among travelers in Boulder, fitting up to 5 passengers with ample room for 3 large suitcases. Ideal for families, couples, or small groups, midsize SUVs offer a perfect blend of comfort and versatility. Whether you're heading out for a day of adventure or simply exploring the scenic beauty of Boulder, this option allows you to manage your luggage easily and travel at your own pace.
• Fullsize: With room for 5 travelers and the capacity to hold up to 3 large or 5 medium suitcases, fullsize cars are well-suited for families and groups. This vehicle type provides the space you need for a comfortable journey while offering flexibility for your travel plans. If you’re planning a road trip around Boulder, the fullsize option ensures you have the room for everyone and their gear.
• Compact: Perfect for solo travelers, couples, or small families, compact cars fit 5 travelers and accommodate up to 3 medium suitcases. This option is a great choice for those looking to navigate Boulder with ease while enjoying the scenery without the bulk of larger vehicles. Compact cars offer a practical solution for anyone who values efficiency and agility during their travels.

Top rated car suppliers in Boulder

• Hertz: With a rental location conveniently situated in Boulder, Hertz is a popular choice for travelers seeking flexibility in their journey. Many travelers opt for the Midsize SUV and Compact SUV, making these vehicles top picks for those exploring the beautiful surroundings of Boulder.
• Budget: Budget boasts two rental locations in Boulder, providing excellent accessibility for tourists. Known for their affordability, Budget’s most booked vehicles include the Midsize SUV and Fullsize, making it an ideal option for families or groups looking for value without sacrificing comfort.
• Sixt: Sixt features a rental location in Boulder, offering a streamlined experience for visitors. This supplier is favored for its selection of Midsize SUV and Compact SUV vehicles, which are perfect for navigating both the city and the stunning natural landscapes nearby.

Where to go in and around Boulder

• Longmont: Located 14 miles away from Boulder, Longmont is a city known for its outdoor, adventure, and scenic experiences. Visitors can explore the University of Colorado Boulder for educational insights, or immerse themselves in culture at the Longmont Museum. For nature enthusiasts, Saint Vrain State Park offers beautiful landscapes and outdoor activities. The number of traveler arrivals peaks in April and June to July, making it a great spring and summer destination.
• Central Boulder: Central Boulder is a vibrant neighborhood offering a mix of outdoor, adventure, and city experiences. Key attractions include the University of Colorado Boulder, the Downtown Boulder Historic District for a taste of local culture, and the iconic Flatirons for breathtaking scenery. The area sees a peak in visitors from July to September, perfect for those planning a summer getaway.
• North Boulder: North Boulder is a family-friendly neighborhood that highlights outdoor and city experiences. Key points of interest include the University of Colorado Boulder, the stunning Flatirons, and the Downtown Boulder Historic District. The neighborhood experiences peak visitor numbers in June to July and September, making it an ideal place for summer family outings and recreational activities.

10 tips to save on your Boulder car hire

1. Use filters to find the right car: Refine your search by vehicle type and features. Whether you're looking for an SUV for extra space, a convertible for summer drives, or an economy car for budget-friendly travel, filters on Expedia can help you find the ideal match for your journey.
2. Book in advance to help lower costs: Rental prices can vary based on demand, so it's wise to secure your car well ahead of your trip. By booking early, you're more likely to find lower rates and enjoy 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 surcharges, and certain vehicle types—such as SUVs or premium models—might not be available. This 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 option. Others may offer full-to-empty or prepaid fueling options, which are also acceptable; just make sure to return the car empty in that case.
6. Save on city and airport pickups: Picking up your rental car at an airport often incurs a surcharge, but the added convenience might make it worthwhile.
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 if something unforeseen occurs during your trip. It's easy to add car rental insurance when booking through Expedia.
9. Consider unlimited mileage: If you're planning extended road trips, look for rental options that include unlimited mileage to prevent extra charges.
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 Boulder

The best value period to rent a car in and around Boulder is January and February, when both prices and demand are slightly low. Following this, April offers a quieter option with slightly low demand and average pricing. As the summer approaches, June through August see an increase in both prices and demand, with July being the most expensive month of the year. With this trend, August remains busy, making it a peak time for rentals.

Calendar Month	Temperature	Precipitation	Cloudiness	Demand	Pricing
January	25.9°F (-3.4°C)	No Rain (Dry)	Mostly Sunny	Slightly Low	Slightly Low
February	26.2°F (-3.2°C)	No Rain (Dry)	Mostly Sunny	Slightly Low	Slightly Low
March	36.0°F (2.2°C)	Light Rain	Mostly Sunny	Average	Average
April	43.0°F (6.1°C)	Light Rain	Mostly Sunny	Slightly Low	Average
May	52.0°F (11.1°C)	Light Rain	Mostly Sunny	Average	Average
June	64.9°F (18.3°C)	Light Rain	Sunny	Slightly High	Average
July	70.2°F (21.2°C)	Light Rain	Sunny	Slightly High	Slightly High
August	68.9°F (20.5°C)	No Rain (Dry)	Sunny	Slightly High	Slightly High
September	62.2°F (16.8°C)	No Rain (Dry)	Sunny	Average	Slightly High
October	46.9°F (8.3°C)	No Rain (Dry)	Sunny	Average	Average
November	35.4°F (1.9°C)	No Rain (Dry)	Sunny	Average	Slightly Low
December	26.1°F (-3.3°C)	No Rain (Dry)	Mostly Sunny	Average	Average

Finding the cheapest car rentals in Boulder

Using our Search Wizard

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

Renting a car in Boulder

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

Prices are subject to seasonal change depending on when you decide to arrange your car rental but right now you can book from $39.

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