Title: Car Rental Grassy Key, FL - Expedia.ca [Grassy Key Travel Guide](https://expedia.ca/Grassy-Key.dx3000451823)[Hotels in Grassy Key](https://expedia.ca/Grassy-Key-Hotels.d3000451823.Travel-Guide-Hotels)[Flights to Grassy Key](https://expedia.ca/Cheap-Flights-To-Grassy-Key.d3000451823.Travel-Guide-Flights)[Things to do in Grassy Key](https://expedia.ca/Things-To-Do-In-Grassy-Key.d3000451823.Travel-Guide-Activities)[Grassy Key Vacation Packages](https://expedia.ca/Grassy-Key.d3000451823.Destination-Travel-Guides) ![](https://images.trvl-media.com/place/2437/83757040-1d80-4589-aea2-a5fe1bb3ba0c.jpg?impolicy=fcrop&w=1200&h=300&q=medium) # Grassy Key Car Rental ## Search and Compare from Car Companies in Grassy Key Photo by Monica Ferro ## Featured car rental suppliers Compare from agencies ![car supplier logos](https://forever.travel-assets.com/flex/flexmanager/images/2022/05/16/BEXCA-car-suppliers-logo-desktop.jpg) - ![protection illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__protection.svg) ### Change your mind Penalty-free cancellation on many/select car rentals - ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Treat yourself Members save 10% or more on over 1 million car rentals - ![package illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__package.svg) ### Shop smart Compare car suppliers to unlock big savings ## Top Car Deals in Grassy Key \* Price found within the past 6 days. Click for updated prices. ### Economy Chevrolet Spark or similar - 4 people Grassy Key, Florida, USA ![Chevrolet Spark](//images.trvl-media.com/media/content/shared/images/car/Common_90X50/US_EC.png) [](https://expedia.ca/carsearch?paandi=true&fdrp=1&styp=2&dagv=1&subm=1&locn=Grassy%20Key,%20Florida,%20United%20States%20of%20America&dpln=3000451823&date1=02/01/2026&date2=04/01/2026&crfrr=defaultFlex&SearchType=Place&selCC=[%22economy%22]) ### Compact Ford Focus or similar - 4 people Grassy Key, Florida, USA ![Ford Focus](//images.trvl-media.com/media/content/shared/images/car/Common_90X50/US_CC.png) [](https://expedia.ca/carsearch?paandi=true&fdrp=1&styp=2&dagv=1&subm=1&locn=Grassy%20Key,%20Florida,%20United%20States%20of%20America&dpln=3000451823&date1=02/01/2026&date2=04/01/2026&crfrr=defaultFlex&SearchType=Place&selCC=[%22compact%22]) ### Midsize Toyota Corolla or similar - 5 people Grassy Key, Florida, USA ![Toyota Corolla](//images.trvl-media.com/media/content/shared/images/car/Common_90X50/US_IC.png) [](https://expedia.ca/carsearch?paandi=true&fdrp=1&styp=2&dagv=1&subm=1&locn=Grassy%20Key,%20Florida,%20United%20States%20of%20America&dpln=3000451823&date1=02/01/2026&date2=04/01/2026&crfrr=defaultFlex&SearchType=Place&selCC=[%22midsize%22]) ### SUV Jeep Compass or similar - 5 people Grassy Key, Florida, USA ![Jeep Compass](//images.trvl-media.com/media/content/shared/images/car/Common_90X50/US_SF.png) [](https://expedia.ca/carsearch?paandi=true&fdrp=1&styp=2&dagv=1&subm=1&locn=Grassy%20Key,%20Florida,%20United%20States%20of%20America&dpln=3000451823&date1=02/01/2026&date2=04/01/2026&crfrr=defaultFlex&SearchType=Place&selCC=[%22suv%22]) ### Don't see what you're looking for? See all car rentals in Grassy Key [View all cars](https://expedia.ca/carsearch?paandi=true&fdrp=1&styp=2&dagv=1&subm=1&locn=Grassy%20Key,%20Florida,%20United%20States%20of%20America&dpln=3000451823&date1=02/01/2026&date2=04/01/2026&crfrr=defaultFlex&SearchType=Place) ## Frequently asked questions ### Can I rent a car from Marathon, FL (MTH-Florida Keys Marathon)? ### What happens if I need to cancel my Grassy Key car reservation? ### How do I find the best car rental deals in Grassy Key with Expedia? ### How old do you have to be to rent a car in Grassy Key? ### What do you need to rent a car in Grassy Key? ### Can I rent a car for a month or longer in Grassy Key? ### Where can I find a Grassy Key car rental if I am younger than 25? ## Car Rental Information | Popular car types: | [SUV](https://www.expedia.ca/lp/b/car-rental/suv?rfrr=car.table.SUV), [Full Size](https://www.expedia.ca/lp/b/car-rental/fullsize?rfrr=car.table.FullSize), [Economy](https://www.expedia.ca/lp/b/car-rental/economy?rfrr=car.table.Economy) | | -------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Car suppliers available: | | | Our best deal of the day: | | | Our second best deal of the day: | | | Our third best deal of the day: | | | From the airport to your hotel: | [Airport Transportation](https://www.expedia.ca/ground-transfers?rfrr=car.table.AirportTransportation) | ## Explore a world of travel with Expedia - 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