• Customer ratings 8.9 / 10
  • Over 1 million successful rentals

Car Hire Idaho

Save time and money. We compare the offers of car rental companies in Idaho on your behalf.

Enter city or airport code
- days
Why book with us?
  • Free cancellation Up to 48 hours prior to the scheduled pick up time
  • Best price guarantee Have you found a better price? Let us know and we will make you a better offer.
  • Already 500,000+ bookings More than half a million people preceded you 24000+ pick-up locations Locations around the world
  • 24000+ pick-up locations Locations around the world
We compare all of the well known car hire firms - and many others!

Compare Car Hire

Carrentals.co.uk offers simple and straightforward car hire comparison services. We don't add a penny to your quotes!

Idaho Guide


Idaho may remain a largely rural state, but its capital, Boise, has become the biggest American Rocky Mountains metropolitan area outside of Colorado. This northwest state, most famous for its potatoes and its Sun Valley ski resort, is divided into two distinct regions. Logging is the dominant industry in northern Idaho’s rural and mountainous panhandle, while more populous southern Idaho is primarily a flatter farming region.

Hiring a Vehicle

Numerous opportunities to obtain a rental vehicle are available at not only Boise Airport, but most of the smaller Idaho airports, including Sun Valley’s nearby Friedman Memorial Airport and Idaho Falls Regional Airport. Northern Idaho visitors may find it convenient to get their vehicles at Spokane International Airport before driving the 20 miles east to Idaho’s border. All intending travellers would benefit from taking the time to compare car hire before they leave home. Companies represented include Avis, Budget, Thrifty and many others.

Transport Options

No international flights are currently offered at Boise Airport, Idaho’s biggest, or Spokane International Airport, the nearest airport to northern Idaho’s biggest city, Coeur d'Alene. The smaller Idaho Falls Regional Airport is a common air gateway to Yellowstone National Park. Car rental in Idaho is a necessity in most parts of this state whose only public transportation is a late night stop along Amtrak's Empire Builder rail route in the tiny panhandle community of Sandpoint.

Car Hire Driving Tips in Idaho

North and south Idaho are linked by only two major roads, Idaho State Highway 55 and US 95. I-84 is Boise’s main interstate highway, while I-15 passes through Idaho Falls and Pocatello. Interstates 15 and 84 are connected by the much shorter I-86. I-90 through Coeur d'Alene is northern Idaho’s only major interstate highway. Idaho’s numerous rural two-lane roads, many of which are unpaved, become even more treacherous in winter. Journeys with car hire in Idaho between the state’s northern and eastern regions often require detours through Montana or Boise.

Not to be Missed!

Idaho’s main tourist attractions are its diverse rural landscapes. The Pacific Northwest’s unofficial playground, Coeur d'Alene, attracts countless golfers to its four-star namesake resort in summer and skiers to the nearby Silver Mountain Ski and Summer Resort in winter. Two of Idaho’s most unique roadside landmarks are Cottonwood’s Dog Bark Park’s giant canine and the world’s biggest potato chip, part of Blackfoot’s Idaho Potato Expo.

Weather & Tourist Seasons

Idaho’s climate varies as much as its terrain. The Pacific Ocean may lie 350 miles from the western part of the state, but maritime influence nonetheless makes western winters here milder than those in the east, yet temperatures still commonly drop below freezing. Eastern Idaho experiences drier winters and more summer rain than the western area. However, Idaho’s weather is always unpredictable no matter the season, especially in mountainous regions. Summer temperatures can soar to 38°C.

Practical information

  • Currency
    United States Dollar
  • Driving direction
  • City speed limit
    25 - 70 km/h
  • Freeway speed limit
    90 - 130 km/h
  • Language

What most people want to know

The following questions and answers are a selection of the most popular questions. If you do not find the answer to your question, have a look at the Frequently Asked Questions page or contact us.

Is Carrentals.co.uk the cheapest?

Yes, we offer a guarantee of the lowest price - because we compare various retailers, we can always offer you the best price in town.

What do I need to do when picking up a car?

To pick up your car, you will need your voucher, passport, driver's license and a credit card. It is very important that your driver's license and credit card are in the same name as the main driver. Keep in mind that the local rental company will reserve a certain amount on your credit card as a deposit. This requires the PIN code for your credit card. If your driver's license is foreign (for example, in Chinese), you must bring a translation with you. Only your original passport and driver's license will be accepted - a copy is not sufficient.

Are there any additional costs?

In general, our rates are all-inclusive. Should there be any additional costs, our booking department will get in touch with you before issuing the invoice. Should you object, you can always cancel your reservation with no obligations attached (at least 48 hours in advance).

What kind of insurance is applicable to my car rental?

In general, Liability Insurance, Fire Insurance, All-Risks Insurance and Theft Insurance are included in the cost of your rental car.

What is a worry-free label?

Only rental companies with a high level of customer satisfaction are eligible to be included in our Worry-Free selection. This rate includes excess cover and unlimited kilometres. Your vehicle will be provided and must be returned with a full tank of fuel. With a vehicle from our Worry-Free selection, you can travel with peace of mind and no hidden costs.

How can I change or cancel my reservation?

You can cancel your reservation through "My Account". We recommend contacting us by phone if your changes to your booking or cancellation takes place at short notice (48 hours or less).

When will I get a confirmation of my booking?

Most reservations will receive confirmation within minutes after payment takes place. We recommend contacting our Booking Department for last minute reservations (pick-up within 48 hours).