$4 Car Rental Grassy Key, FL

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Top Car Deals in Grassy Key

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

Sat, Aug 2 to Sun, Aug 3

Economy

Chevrolet Spark or similar
  • 5 people
  • Unlimited mileage
Miami, Florida, USA
Chevrolet Spark

$4

includes taxes & fees
$4 per day
found 6 hours ago
Economy Chevrolet Spark
Sat, Aug 2 to Sun, Aug 3

Compact

Hyundai Accent or similar
  • 5 people
  • Unlimited mileage
Miami, Florida, USA
Hyundai Accent

$4

includes taxes & fees
$4 per day
found 6 hours ago
Compact Hyundai Accent
Tue, Aug 5 to Wed, Aug 6

Midsize

Nissan Sentra or similar
  • 5 people
  • Unlimited mileage
Miami, Florida, USA
Nissan Sentra

$6

includes taxes & fees
$6 per day
found 4 hours ago
Midsize Nissan Sentra
Sat, Aug 2 to Sun, Aug 3

Fullsize

Hyundai Sonata or similar
  • 5 people
  • Unlimited mileage
Miami, Florida, USA
Hyundai Sonata

$10

includes taxes & fees
$10 per day
found 6 hours ago
Fullsize Hyundai Sonata
Tue, Aug 5 to Wed, Aug 6

Special

Special car or similar
  • 5 people
  • Unlimited mileage
Miami, Florida, USA
Special car

$26

includes taxes & fees
$17 per day
found 6 hours ago
Special Special car
Tue, Aug 5 to Wed, Aug 6

Premium

Dodge Charger or similar
  • 5 people
  • Unlimited mileage
Miami, Florida, USA
Dodge Charger

$41

includes taxes & fees
$30 per day
found 2 hours ago
Premium Dodge Charger
Sun, Aug 3 to Mon, Aug 4

Premium Elite

Dodge Charger GT or similar
  • 5 people
  • Unlimited mileage
Miami, Florida, USA
Dodge Charger GT

$87

includes taxes & fees
$34 per day
found 7 hours ago
Premium Elite Dodge Charger GT
Sat, Aug 2 to Sun, Aug 3

Standard SUV

GMC Terrain or similar
  • 5 people
  • Unlimited mileage
Miami, Florida, USA
GMC Terrain

$37

includes taxes & fees
$37 per day
found 4 hours ago
Standard SUV GMC Terrain
Tue, Aug 5 to Wed, Aug 6

Standard Elite Special

Ford Mustang Mach-E or similar
  • 5 people
  • Unlimited mileage
Miami, Florida, USA
Ford Mustang Mach-E

$62

includes taxes & fees
$44 per day
found 4 hours ago
Standard Elite Special Ford Mustang Mach-E
Tue, Aug 5 to Wed, Aug 6

Luxury

Chrysler300 or similar
  • 5 people
  • Unlimited mileage
Miami, Florida, USA
Chrysler300

$62

includes taxes & fees
$49 per day
found 2 hours ago
Luxury Chrysler300
Tue, Aug 5 to Wed, Aug 6

Mini Van

Dodge Grand Caravan or similar
  • 4 people
  • Unlimited mileage
Miami, Florida, USA
Dodge Grand Caravan

$49

includes taxes & fees
$49 per day
found 4 hours ago
Mini Van Dodge Grand Caravan
Tue, Aug 5 to Wed, Aug 6

Midsize Elite Special

Tesla Model 3 or similar
  • 5 people
  • Unlimited mileage
Miami, Florida, USA
Tesla Model 3

$76

includes taxes & fees
$56 per day
found 4 hours ago
Midsize Elite Special Tesla Model 3
Tue, Aug 5 to Wed, Aug 6

Fullsize Elite Special

Audi A5 Sportback or similar
  • 5 people
  • Unlimited mileage
Miami, Florida, USA
Audi A5 Sportback

$90

includes taxes & fees
$69 per day
found 6 hours ago
Fullsize Elite Special Audi A5 Sportback
Tue, Aug 5 to Wed, Aug 6

Compact Elite

Mercedes-benz cla-class or similar
  • 5 people
  • Unlimited mileage
Miami, Florida, USA
Mercedes-benz cla-class

$106

includes taxes & fees
$79 per day
found 2 hours ago
Compact Elite Mercedes-benz cla-class
Sun, Aug 3 to Mon, Aug 4

Oversize SUV

Lincoln Navigator L Jeep Grand Wagoneer L or similar
  • 7 people
  • Unlimited mileage
Miami, Florida, USA
Lincoln Navigator L Jeep Grand Wagoneer L

$156

includes taxes & fees
$124 per day
found 3 hours ago
Oversize SUV Lincoln Navigator L Jeep Grand Wagoneer L
Sun, Aug 3 to Mon, Aug 4

Luxury Elite

Audi Q7 Volvo XC90 or similar
  • 7 people
  • Unlimited mileage
Miami, Florida, USA
Audi Q7 Volvo XC90

$161

includes taxes & fees
$128 per day
found 3 hours ago
Luxury Elite Audi Q7 Volvo XC90

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Lowest prices found within the past 6 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 onto the road is a cinch.
What happens if I need to cancel my Grassy Key car reservation?
We know that having a bit of wiggle room is important. That's why most rentals offer a full refund if you notify us at least six hours ahead of collecting the car. You may want to scan the rental policy though as there are some exclusions. If the information isn't there, have a look on our Customer Service Portal.
What types of cars can I rent in Grassy Key?
Bustling city streets and cramped parking spots are no hassle for an economy car — the most sought-after rental type in Grassy Key. Jump behind the wheel of one of these and negotiate traffic like a dream. Reliable, affordable and good on gas, these small rides pack plenty of punch. But Grassy Key can be explored in almost any type of rental you like. Compact, mid-size and full-size vehicles are among your options.
Why should I rent a Grassy Key car with Expedia?
From short business trips to cross-country journeys, Expedia has vehicles to suit every style and adventure. Take your pick of reliable rental companies in Grassy Key. And with our Best Price Guarantee, you'll always get an amazing deal on your wheels. Did you know you can bundle your bookings into a vacation package? Add a flight or hotel to your rental car and watch the savings stack up!
How do I find the best car rental deals in Grassy Key with Expedia?
Scoring an awesome deal on your Grassy Key rental car is easy with Expedia. Choose your preferred car class, add some details and compare the offers from popular brands. Why not add hotels and flights to your booking? You'll get access to terrific discounts when you combine your bookings into a package.
How old do you have to be to rent a car in Grassy Key?
Drivers with a valid license aged 21 and above can rent a vehicle in Grassy Key. While some suppliers may be willing to rent to drivers younger than 21, contracts will come with additional fees. Find out what age range the young driver surcharge applies to, and associated costs, before booking your ride. Providers also restrict the types of cars young drivers can rent. Higher age limits apply for large vehicles like premium SUVs and luxury models.
What do you need to rent a car in Grassy Key?
Generally, you'll need a current driver's license and a credit card in the same name when collecting your vehicle. Proof of coverage may also be needed if you'd like to opt out of the company's insurance plan. These requirements may differ between suppliers, so it's always wise to read the fine print.
Can I rent a car for a month or longer in Grassy Key?
You can. We partner with trusted companies that offer long-term rentals for all car types. Check out our long-term car rental deals and discover every part of Grassy Key — or far beyond!
Where can I find a Grassy Key car rental if I am younger than 25?
You'll need to investigate the age policy of the Grassy Key rental providers you're interested in. If you're under 25 years old, some companies will charge additional costs. It's good to know this before collecting the vehicle so you can plan your budget accordingly. Every rental car company has its own policies for young drivers, so it pays to do your research.
What insurance should I choose for my car rental in Grassy Key?
Purchase collision protection while reserving your Grassy Key car rental with Expedia. This protects your ride against accident damage, theft and vandalism throughout your vacation. Offering up to $35,000 in primary coverage and round-the-clock emergency assistance, you can rest easy knowing you'll be covered if the unexpected happens. It's easy to opt in to this insurance while booking your rental car.

Car Rental Information

 
Popular car types
SUV, Full Size, Economy
 
Car suppliers available
 
Our best deal of the day
$4
 
Our second best deal of the day
$6
 
Our third best deal of the day
$10
 
From the airport to your hotel
Airport Transportation
 
From popular domestic and international airports
Airport Car Rentals

Finding the cheapest car rentals in Grassy Key

Using our Search Wizard

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

Renting a car in Grassy Key

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

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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One Key members save 10% or more on select hotels, cars, activities and vacation rentals. Not only that, earn OneKeyCash for every dollar spent on eligible hotels, vacation rentals, flights, car rentals, and more when you book across our family of brands: Expedia, Hotels.com and VRBO. Learn more and join today.

Car classes available from Expedia in 2025

The classes of vehicles available will change depending on your chosen location.