$4 Car Rental Key Biscayne, FL

These Key Biscayne insights are based on real traveler data from Expedia, aggregated using AI to help you plan your trip. Updated: August 15, 2026.

Reasons to book a car rental in and around Key Biscayne

Renting a car in Key Biscayne offers the freedom and flexibility to explore the area and its attractions at your own pace. This is especially beneficial for families and those traveling with luggage, as a rental car allows for easy management of belongings while keeping everyone together. You can enjoy the beautiful Key Biscayne Beaches, ideal for a relaxing day in the sun, or visit the scenic Bill Baggs Cape Florida State Park, perfect for outdoor adventures. Additionally, you can take a short drive to Ocean Drive, located 5 miles away, which is well-known for its family-friendly and outdoor experiences. Having a car also makes it convenient to venture into nearby cities like Miami and Miami Beach, both within a short distance. Miami Beach is only 7 miles away, while South Beach is just 6 miles away, offering more attractions such as the Miami Beach Boardwalk and Bayfront Park. With a rental car, you can easily plan your itinerary and enjoy a more personalized travel experience, making the most of your time in Key Biscayne and surrounding areas.

Where to stay around Key Biscayne

• Key Biscayne: A tranquil island paradise located within Miami, Key Biscayne is ideal for families and outdoor enthusiasts. Enjoy beautiful beaches and family-friendly attractions. The area features various dining options, along with quick access to nearby landmarks such as the beach and tourist precinct. Key Biscayne is perfect for those seeking a relaxing seaside getaway while still being close to the vibrant Miami scene.
• Miami: As a bustling metropolis, Miami offers a mix of family, outdoor, and business-themed experiences. Located just a short distance from Key Biscayne, visitors can explore attractions like the famous Ocean Drive and Bayfront Park. Miami is a great place for shopping enthusiasts, with numerous shopping centers and areas to choose from. Enjoy the local culinary scene with a variety of restaurants, wineries, and breweries available throughout the city.
• Miami Beach: Just 7 miles from Key Biscayne, Miami Beach is known for its stunning beaches and vibrant atmosphere. This city is perfect for families and outdoor lovers, boasting attractions like the Miami Beach Boardwalk and Ocean Drive. With plenty of shopping areas and diverse dining options, Miami Beach offers a lively experience. The combination of beach activities and urban amenities makes it an exciting destination for travelers of all types.
• South Beach: Located 6 miles from Key Biscayne, South Beach is a lively neighborhood famous for its beautiful beaches and cultural scene. Families and outdoor enthusiasts will appreciate the area’s various attractions, including the iconic Ocean Drive and Miami Beach Boardwalk. South Beach also offers numerous shopping centers and a wide range of dining experiences, making it a perfect spot for those who want to enjoy both relaxation and city life.

10 tips to save on your car rental in and around Key Biscayne

1. Use filters to find the right car: Streamline your search by specifying vehicle type and features. Whether you're looking for an SUV for additional space, a convertible for summer drives, or an economy car for budget-friendly options, filters on Expedia can assist you in finding the perfect vehicle for your journey.
2. Book in advance to help lower costs: Rental rates can vary with demand, so it's advisable to reserve your car well ahead of your trip. By booking in advance, you're more likely to secure lower rates and enjoy better availability, particularly during peak travel seasons.
3. Consider a smaller car for savings: Compact cars typically have lower rental rates and are easier to maneuver and park in crowded areas. Mid-size vehicles offer a balanced combination of cost, 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 accessible. This can also apply to renters over the age of 70. Always verify the age restrictions prior to booking.
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 typically the most favorable option. Other policies may offer full-to-empty or prepaid fueling choices; just be sure to return the vehicle empty in those cases.
6. Save on city and airport pickups: There is often an added fee for picking up your rental car at airports, but the convenience may make it worthwhile.
7. Know your payment options: Most car rental companies primarily accept credit cards for payment.
8. Understand your insurance coverage: Car rental insurance can help prevent unexpected expenses and provide peace of mind in case of unforeseen events during your trip. Adding car rental insurance when booking through Expedia is a straightforward process.
9. Consider unlimited mileage: If you're planning extended road trips, seek out rentals that offer unlimited mileage to avoid incurring extra charges.
10. Bring your driver's license and ID: A valid driver's license is necessary for renting a vehicle.

Finding the cheapest car rentals in Key Biscayne

Using our Search Wizard

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

Renting a car in Key Biscayne

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

Prices are subject to seasonal change depending on when you decide to arrange your car rental but right now you can book from $4.

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