Pros:

Saves Money: This is the most obvious pro of car rental discount codes, but I wanted to emphasize that discount codes really can save you a ton of money when you book a rental car.

Easy to Find: The Internet is full of car rental discount codes. You can find them on blogs, forums and on the websites of rental car companies. If you’re looking for them on a rental car company’s website, they’re usually located in a section called “Special OFfers” or “Deals.”

Can Add Bonuses: Depending on the code, saving money may not be its only benefit. For example, there are commonly discount codes that also allow you to earn double points through frequent flyer programs.

Get More for Less: A car rental discount code can allow you to get a better rental car at a lower price. As you will find when you look for them, there are many discount codes that allow you to upgrade to the next class of vehicle for free.

Cons:

Not All Codes Work Together: In some cases, you can use more than one discount code to save even more. Unfortunately, many times this won’t work, or you will find that a discount code will work with one other one, but not the rest you have found.

Normally Have to Book Through the Company’s Website: Although you may prefer using a price comparison website to book your rental car, if you use a discount code, you may have to book your rental directly through the company’s website.

Can Be Restrictions: In order to use some discount codes, you may have to book a smaller or lower class vehicle than you want to book.

Expire Often: Although the Internet is full of discount codes, they expire often, so it can be challenging to find one that actually works.