Title: Castleknock Car Rental - Search & Compare - Expedia.ca​ [Castleknock Travel Guide](https://expedia.ca/Castleknock.dx179046)[Hotels in Castleknock](https://expedia.ca/Castleknock-Hotels.d179046.Travel-Guide-Hotels)[Flights to Castleknock](https://expedia.ca/Cheap-Flights-To-Castleknock.d179046.Travel-Guide-Flights)[Castleknock Vacation Packages](https://expedia.ca/Castleknock.d179046.Destination-Travel-Guides) ![](https://images.trvl-media.com/place/179046/a73e69d1-de41-4a26-8825-d8553324df6a.jpg?impolicy=fcrop&w=1200&h=300&q=medium) # Castleknock Car Rental ## Search and Compare from Car Companies in Castleknock ## 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 Castleknock \* Price found within the past 6 days. Click for updated prices. ### Economy Chevrolet Spark or similar - 4 people Castleknock, IRL ![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=Castleknock,%20Dublin,%20Ireland&dpln=179046&date1=03/04/2026&date2=05/04/2026&crfrr=defaultFlex&SearchType=Place&selCC=[%22economy%22]) ### Compact Ford Focus or similar - 4 people Castleknock, IRL ![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=Castleknock,%20Dublin,%20Ireland&dpln=179046&date1=03/04/2026&date2=05/04/2026&crfrr=defaultFlex&SearchType=Place&selCC=[%22compact%22]) ### Midsize Toyota Corolla or similar - 5 people Castleknock, IRL ![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=Castleknock,%20Dublin,%20Ireland&dpln=179046&date1=03/04/2026&date2=05/04/2026&crfrr=defaultFlex&SearchType=Place&selCC=[%22midsize%22]) ### SUV Jeep Compass or similar - 5 people Castleknock, IRL ![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=Castleknock,%20Dublin,%20Ireland&dpln=179046&date1=03/04/2026&date2=05/04/2026&crfrr=defaultFlex&SearchType=Place&selCC=[%22suv%22]) ### Don't see what you're looking for? See all car rentals in Castleknock [View all cars](https://expedia.ca/carsearch?paandi=true&fdrp=1&styp=2&dagv=1&subm=1&locn=Castleknock,%20Dublin,%20Ireland&dpln=179046&date1=03/04/2026&date2=05/04/2026&crfrr=defaultFlex&SearchType=Place) ## Frequently asked questions ### How much is a rental car per day in Castleknock? ### Can I rent a car from Dublin Airport (DUB)? ### What happens if I need to cancel my Castleknock car reservation? ### Where can I go on a road trip from Castleknock? > - Make your way to Waterford for a fantastic sightseeing experience. Approximately 137 kilometres from Castleknock, it has numerous amazing attractions like House of Waterford Crystal. > - Why not check out all that's on offer in Dundalk too? Top tourist attractions in this buzzing city include Dundalk Stadium. Dundalk is about 72 kilometres from Castleknock. > - Make your way to Connemara National Park to rediscover nature. Pack a picnic to enjoy or just recharge your batteries in the fresh air. From Castleknock, it's about 241 kilometres away. ### How do I find the best car rental deals in Castleknock with Expedia? ### How old do you have to be to rent a car in Castleknock? ### What do you need to rent a car in Castleknock? ### What side of the road do you drive on in Castleknock? ### What is the cheapest car rental in Castleknock? ### Can I rent a car for a month or longer in Castleknock? ### Where can I find a Castleknock 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) | ![](https://a.travel-assets.com/mad-service/footer/bnaBanners/BEX_Footer.jpg) ## Go further with the Expedia app Save on select hotels and earn double points when you book on the app. Our app deals help you to save on trips so you can travel more and manage it all on the go. 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