Title: Cheap Car Hire in Southwest Ada County Alliance, USA - Expedia.co.uk [Southwest Ada County Alliance Travel Guide](https://expedia.co.uk/Boise-Southwest-Ada-County-Alliance.dx553248635976479553)[Hotels in Southwest Ada County Alliance](https://expedia.co.uk/Southwest-Ada-County-Alliance-Boise-Hotels.0-n553248635976479553-0.Travel-Guide-Filter-Hotels)[Flights to Boise](https://expedia.co.uk/Cheap-Flights-To-Boise.d602998.Travel-Guide-Flights)[Things to do in Boise](https://expedia.co.uk/Things-To-Do-In-Boise.d602998.Travel-Guide-Activities)[Southwest Ada County Alliance Holidays](https://expedia.co.uk/Southwest-Ada-County-Alliance.d553248635976479553.Holidays-City-Breaks) ![](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_car.jpeg?impolicy=fcrop&w=1200&h=300&q=medium) # Car Rentals in Southwest Ada County Alliance, USA ## Search and Compare from Car Companies in Southwest Ada County Alliance ## Featured car rental suppliers Compare from agencies ![car supplier logos](https://forever.travel-assets.com/flex/flexmanager/images/2022/05/16/BEXUK-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 hire - ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Treat yourself One Key members save 10% or more on over 1 million car hire [Learn about One Key](https://www.expedia.co.uk/welcome-one-key) - ![package illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__package.svg) ### Shop smart Compare car suppliers and package your flight, hotel, and car to save ## Top Rental Car Deals in Southwest Ada County Alliance \* Price found within the past 6 days. Click for updated prices. ### Economy Chevrolet Spark or similar - 4 people Boise, Idaho, USA ![Chevrolet Spark](//images.trvl-media.com/media/content/shared/images/car/Common_90X50/US_EC.png) [](https://expedia.co.uk/carsearch?paandi=true&fdrp=1&styp=2&dagv=1&subm=1&locn=Southwest%20Ada%20County%20Alliance,%20Boise,%20Idaho,%20United%20States%20of%20America&dpln=553248635976479553&date1=15/02/2026&date2=17/02/2026&crfrr=defaultFlex&SearchType=Place&selCC=[%22economy%22]) ### Compact Ford Focus or similar - 4 people Boise, Idaho, USA ![Ford Focus](//images.trvl-media.com/media/content/shared/images/car/Common_90X50/US_CC.png) [](https://expedia.co.uk/carsearch?paandi=true&fdrp=1&styp=2&dagv=1&subm=1&locn=Southwest%20Ada%20County%20Alliance,%20Boise,%20Idaho,%20United%20States%20of%20America&dpln=553248635976479553&date1=15/02/2026&date2=17/02/2026&crfrr=defaultFlex&SearchType=Place&selCC=[%22compact%22]) ### Midsize Toyota Corolla or similar - 5 people Boise, Idaho, USA ![Toyota Corolla](//images.trvl-media.com/media/content/shared/images/car/Common_90X50/US_IC.png) [](https://expedia.co.uk/carsearch?paandi=true&fdrp=1&styp=2&dagv=1&subm=1&locn=Southwest%20Ada%20County%20Alliance,%20Boise,%20Idaho,%20United%20States%20of%20America&dpln=553248635976479553&date1=15/02/2026&date2=17/02/2026&crfrr=defaultFlex&SearchType=Place&selCC=[%22midsize%22]) ### SUV Jeep Compass or similar - 5 people Boise, Idaho, USA ![Jeep Compass](//images.trvl-media.com/media/content/shared/images/car/Common_90X50/US_SF.png) [](https://expedia.co.uk/carsearch?paandi=true&fdrp=1&styp=2&dagv=1&subm=1&locn=Southwest%20Ada%20County%20Alliance,%20Boise,%20Idaho,%20United%20States%20of%20America&dpln=553248635976479553&date1=15/02/2026&date2=17/02/2026&crfrr=defaultFlex&SearchType=Place&selCC=[%22suv%22]) ### Don't see what you're looking for? See all car hire in Southwest Ada County Alliance [View all cars](https://expedia.co.uk/carsearch?paandi=true&fdrp=1&styp=2&dagv=1&subm=1&locn=Southwest%20Ada%20County%20Alliance,%20Boise,%20Idaho,%20United%20States%20of%20America&dpln=553248635976479553&date1=15/02/2026&date2=17/02/2026&crfrr=defaultFlex&SearchType=Place) ## Frequently asked questions ### How much is a rental car per day in Southwest Ada County Alliance? ### What happens if I need to cancel my Southwest Ada County Alliance car reservation? ### What types of cars can I rent in Southwest Ada County Alliance? ### How do I find the best car hire deals in Southwest Ada County Alliance with Expedia? ### How old do you have to be to hire a car in Southwest Ada County Alliance? ### What do you need to hire a car in Southwest Ada County Alliance? ### What is the cheapest car rental in Southwest Ada County Alliance? ### Can I hire a car for a month or longer in Southwest Ada County Alliance? ### Where can I find a Southwest Ada County Alliance hire car if I am younger than 25? ### Can I drive in Southwest Ada County Alliance with my current driver's license? > - Age restrictions: You'll need to be 25 or older in many states in order to hire a car, although in some places the minimum age is 21\. We recommend checking local rules and regulations, as well as the car hire website before you book to understand additional terms and conditions. > - Driving limitations: Don't forget to read the fine print before you slide behind the wheel so you can avoid unnecessary fees. When hiring a car in the United States, you usually can't cross country borders into Mexico or Canada, drive on ferries or go off-roading with a hire car. Please read all the rules and regulations before you book! ### Why should I rent a Southwest Ada County Alliance car with Expedia? ## Car Hire Information | Popular car types: | [SUV](https://www.expedia.co.uk/lp/b/car-rental/suv?rfrr=car.table.SUV), [Full Size](https://www.expedia.co.uk/lp/b/car-rental/fullsize?rfrr=car.table.FullSize), [Economy](https://www.expedia.co.uk/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.co.uk/ground-transfers?rfrr=car.table.AirportTransportation) |