Grassy Key Cheap Car Rentals & Car Hire Deals

Compare rent a car rates in Grassy Key from popular car rental companies

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Enjoy maximum flexibility with penalty-free cancellation on most car rentals.

Explore Grassy Key with Cheap Car Rentals and Car Hire Deals

* Price found within the past 6 days. Click for updated prices.

Tue., 24 Jun. to Wed., 25 Jun.

Standard Elite SUV

GMC Acadia or similar
  • 7 people
  • Unlimited mileage
GMC Acadia

NZ$156

total
found 12 hours ago
Standard Elite SUV GMC Acadia
Tue., 24 Jun. to Wed., 25 Jun.

Premium SUV

BMW X1 or similar
  • 5 people
  • Unlimited mileage
BMW X1

NZ$169

total
found 12 hours ago
Premium SUV BMW X1
Tue., 24 Jun. to Wed., 25 Jun.

Compact Elite

Mercedes A 220 - PRESTIGE or similar
  • 5 people
  • Unlimited mileage
Mercedes A 220 - PRESTIGE

NZ$161

total
found 11 hours ago
Compact Elite Mercedes A 220 - PRESTIGE
Tue., 24 Jun. to Wed., 25 Jun.

Luxury Elite

BMW 5 Series or similar
  • 5 people
  • Unlimited mileage
BMW 5 Series

NZ$181

total
found 12 hours ago
Luxury Elite BMW 5 Series
Tue., 24 Jun. to Wed., 25 Jun.

Midsize Elite SUV

Jeep Wrangler Unlimited or similar
  • 5 people
  • Unlimited mileage
Jeep Wrangler Unlimited

NZ$515

total
found 12 hours ago
Midsize Elite SUV Jeep Wrangler Unlimited

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Lowest prices found within the past 12 hours. Prices and availability subject to change. Additional terms may apply.

Frequently asked questions

Can I rent a car from Marathon, FL (MTH-Florida Keys Marathon)?
With Budget and Avis within a quick commute of Marathon, FL (MTH-Florida Keys Marathon), getting off the plane and out onto the road is quick and easy.
What happens if I need to cancel my Grassy Key car reservation?
No need to stress. You should receive a complete refund if you let us know at least six hours before picking up the car. Your confirmation contains details about this, and so does our Customer Service Portal. Not all prepaid reservations will receive a refund though, so it's a good idea to go over your car's cancellation policy.
How do I find the best car rental deals in Grassy Key with Expedia?
Expedia makes it quick and easy to compare costs, offers and rental companies, and to check customer ratings. Combine your Grassy Key car rental with flight or hotel bookings to make even bigger savings.
How old do you have to be to rent a car in Grassy Key?
In Grassy Key, the requirement is 21 years and over. Most outlets will charge additional fees for young drivers, which can vary based on the rental location. Rental policies for young drivers may include restrictions for certain vehicles, such as luxury cars, and require inclusive insurance to be taken out. It's a good idea to check the fine print before booking your wheels.
What do you need to rent a car in Grassy Key?
Two things --- a valid driver's license and a credit card in the same name. Most car rental companies will offer you insurance, which is optional. But you may have to provide proof of other coverage if you opt out. Be sure to check with your rental provider to avoid any issues.
Can I rent a car for a month or longer in Grassy Key?
Expedia makes it a breeze to book a cheap long-term rental in Grassy Key. Simply click on our long-term car rental deals page, enter your preferences and compare your possibilities.
Where can I find a Grassy Key car rental if I am younger than 25?
Age policies differ between rental companies, so you'll have to do a bit of research. Managed to find a Grassy Key supplier that does rent to drivers under 25? Terrific! Just take note that extra fees often apply to drivers aged between 21 and 24. The terms and conditions of each rental car you're interested in should have all the information you need.