$18 Car Rental Castle Rock, CO

Search and Compare from Car Companies in Castle Rock

I have a discount code

Featured car rental suppliers

Compare from agencies

car suppliers logo

Change your mind: penalty-free cancellation on many/select car rentals

Treat yourself: One Key members save 10% or more on over 1 million car rentals

Shop Smart: Compare car suppliers and package your flight, hotel, and car to save

Top Car Deals in Castle Rock

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

Tue, Aug 26 to Wed, Aug 27

Special SUV

Choice of Supplier SUV or similar
  • 5 people
  • Unlimited mileage
COMMERCE CITY, USA
Choice of Supplier SUV

$32

includes taxes & fees
$7 per day
found 15 hours ago
Special SUV Choice of Supplier SUV
Tue, Aug 26 to Wed, Aug 27

Fullsize SUV

Dodge Durango or similar
  • 7 people
  • Unlimited mileage
Commerce City, Colorado, USA
Dodge Durango

$34

includes taxes & fees
$9 per day
found 15 hours ago
Fullsize SUV Dodge Durango
Tue, Aug 26 to Wed, Aug 27

Compact SUV

Kia Seltos or similar
  • 5 people
  • Unlimited mileage
COMMERCE CITY, USA
Kia Seltos

$36

includes taxes & fees
$10 per day
found 15 hours ago
Compact SUV Kia Seltos
Tue, Aug 26 to Wed, Aug 27

Midsize

Hyundai Kona or similar
  • 2 people
  • Unlimited mileage
Commerce City, USA
Hyundai Kona

$18

includes taxes & fees
$18 per day
found 15 hours ago
Midsize Hyundai Kona
Tue, Aug 26 to Wed, Aug 27

Economy

Nissan Sentra or similar
  • 5 people
  • Unlimited mileage
Commerce City, Colorado, USA
Nissan Sentra

$22

includes taxes & fees
$22 per day
found 15 hours ago
Economy Nissan Sentra
Tue, Aug 26 to Wed, Aug 27

Standard

Hyundai Elantra or similar
  • 5 people
  • Unlimited mileage
Commerce City, USA
Hyundai Elantra

$25

includes taxes & fees
$25 per day
found 15 hours ago
Standard Hyundai Elantra
Tue, Aug 26 to Wed, Aug 27

Premium

Dodge Charger or similar
  • 5 people
  • Unlimited mileage
Denver, Colorado, USA
Dodge Charger

$51

includes taxes & fees
$27 per day
found 15 hours ago
Premium Dodge Charger
Tue, Aug 26 to Wed, Aug 27

Compact Elite SUV

Chevy Trax or similar
  • 5 people
  • Unlimited mileage
COMMERCE CITY, USA
Chevy Trax

$51

includes taxes & fees
$29 per day
found 15 hours ago
Compact Elite SUV Chevy Trax
Tue, Aug 26 to Wed, Aug 27

Midsize Elite SUV

Jeep Compass Lattitude or similar
  • 5 people
  • Unlimited mileage
COMMERCE CITY, USA
Jeep Compass Lattitude

$52

includes taxes & fees
$30 per day
found 15 hours ago
Midsize Elite SUV Jeep Compass Lattitude
Tue, Aug 26 to Wed, Aug 27

Luxury

BMW 220 AWD or similar
  • 5 people
  • Unlimited mileage
Commerce City, Colorado, USA
BMW 220 AWD

$59

includes taxes & fees
$35 per day
found 15 hours ago
Luxury BMW 220 AWD
Tue, Aug 26 to Wed, Aug 27

Mini SUV

Ford Escape or similar
  • 5 people
  • Unlimited mileage
Commerce City, USA
Ford Escape

$36

includes taxes & fees
$36 per day
found 15 hours ago
Mini SUV Ford Escape
Tue, Aug 26 to Wed, Aug 27

Standard Elite SUV

GMC TERRAIN or similar
  • 5 people
  • Unlimited mileage
COMMERCE CITY, USA
GMC TERRAIN

$77

includes taxes & fees
$49 per day
found 15 hours ago
Standard Elite SUV GMC TERRAIN
Tue, Aug 26 to Wed, Aug 27

Fullsize Elite SUV

GMC Acadia or similar
  • 7 people
  • Unlimited mileage
Commerce City, Colorado, USA
GMC Acadia

$81

includes taxes & fees
$52 per day
found 15 hours ago
Fullsize Elite SUV GMC Acadia
Tue, Aug 26 to Wed, Aug 27

Luxury Elite

Genesis G80E or similar
  • 5 people
  • Unlimited mileage
DENVER, USA
Genesis G80E

$94

includes taxes & fees
$60 per day
found 15 hours ago
Luxury Elite Genesis G80E
Tue, Aug 26 to Wed, Aug 27

Premium Elite SUV

Audi Q5 or similar
  • 5 people
  • Unlimited mileage
Denver, Colorado, USA
Audi Q5

$111

includes taxes & fees
$75 per day
found 15 hours ago
Premium Elite SUV Audi Q5
Tue, Aug 26 to Wed, Aug 27

Oversize Van

Ford Transit XL or similar
  • 12 people
  • Unlimited mileage
Commerce City, Colorado, USA
Ford Transit XL

$156

includes taxes & fees
$111 per day
found 15 hours ago
Oversize Van Ford Transit XL

Don't see what you're looking for?

See all car rentals in Castle Rock
View all cars
Lowest prices found within the past 15 hours. Prices and availability subject to change. Additional terms may apply.

Frequently asked questions

How much is a rental car per day in Castle Rock?
The lowest daily rate for a rental car in Castle Rock within the past seven days was $18. With the flexibility of having your own set of wheels, you can make your way to whichever local sights are calling your name.
What happens if I need to cancel my Castle Rock car reservation?
We all have times when plans are turned on their head. That's why we give your money back on many prepaid reservations if you advise us a minimum of six hours prior to collecting the car. Be sure to double-check the rental policy — in some cases it's not offered. Can't find the details there? Our Customer Service Portal is always available to help.
Where can I go on a road trip from Castle Rock?
Castle Rock has plenty to keep you on the move, but don't limit yourself to one place. Book a set of wheels and take to the road to explore the wider region. Here are some great options:

  • Colorado Springs is 35 miles from Castle Rock. Renowned tourist spots like Garden of the Gods should be high on your list here.
  • Around 50 miles away, Boulder is also a favorite with wanderers. Allow time to check out Folsom Field while you're here. It's one of the reasons people love staying a while in this thriving city.
  • Get out into the outdoors and inhale the fresh air at Glenwood Hot Springs. It's about 130 miles from Castle Rock.

How do I find the best car rental deals in Castle Rock with Expedia?
Check customer ratings and reviews, choose your car type and compare offers from top brands. Expedia makes it easy to score the best deal on your rental wheels. Bundle your Castle Rock car rental with flight or hotel bookings and drive away with even more savings.
How old do you have to be to rent a car in Castle Rock?
If you're 21 and over, you can rent a vehicle in Castle Rock. Take into account that rental companies will charge an extra fee if you're a young driver, which is meant to cover the higher accident or damage risk involved. Also, young drivers often aren't permitted to rent larger vehicles and luxury cars. Check the fine print before you book so there are no hassles when you collect the keys.
What do you need to rent a car in Castle Rock?
Any rental company you select will need these two things — your driver's license and a credit card in your name. If you choose to opt out of the provider's insurance plan, proof of your own coverage will also likely be needed. Read your policy thoroughly so you know what to bring when it's time to pick up your ride.
What is the cheapest car rental in Castle Rock?
With rental rates starting from as low as $18 and $22 a day in Castle Rock within the past seven days, you'll be cruising off with your own fantastic deal in no time. These rates were available on Expedia, with a rental starting date within the next year. Prices and availability are subject to change and additional terms apply.
Can I rent a car for a month or longer in Castle Rock?
Yes, and you'll find your perfect set of wheels among our long-term car rental deals. Just enter your trip information and we'll list excellent options from numerous quality companies.
Where can I find a Castle Rock car rental if I am younger than 25?
Age policies are different between rental companies, so you'll have to do a little research. Managed to find a Castle Rock supplier that does rent to drivers under 25? Great news! Just take note that some companies charge extra fees to drivers between the ages of 21 and 24. The terms and conditions of each rental car you're looking at should have all the information you need.
What insurance should I choose for my car rental in Castle Rock?
For a safe, stress-free vacation, add Expedia's collision protection while reserving your rental car. This insurance covers your vehicle against theft, vandalism and collision damage. It also provides customers with 24-hour emergency assistance in times of need. Opt in to this insurance while finalizing your Castle Rock ride with Expedia and save money and time at the rental desk.

Car Rental Information

 
Popular car types
SUV, Full Size, Economy
 
Car suppliers available
 
Our best deal of the day
$18
 
Our second best deal of the day
$22
 
Our third best deal of the day
$25
 
From the airport to your hotel
Airport Transportation
 
From popular domestic and international airports
Airport Car Rentals

Finding the cheapest car rentals in Castle Rock

Using our Search Wizard

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

Renting a car in Castle Rock

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

Prices are subject to seasonal change depending on when you decide to arrange your car rental but right now you can book from $18.

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.

We all love being rewarded

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.