Which rental car company usually has lowest prices?

Most travelers know that Spirit Airlines is a low-cost airline. They’re likely aware that a Four Seasons is almost always more expensive than a Motel 6.

But when it comes to rental car companies, which one usually has the lowest prices? Is Thrifty all that thrifty? Will Budget best help you stick to your budget?

A NerdWallet analysis conducted in March tracked 360 rental car prices across eight major U.S. companies to find which had the cheapest car rentals — and which had the most expensive.

By almost all metrics, National Car Rental was the most expensive, followed by Alamo Rent a Car. Enterprise Rent-A-Car, Budget, Hertz and Dollar ranked among the cheapest.

In our analysis of average rental car prices across different companies, weekly car rentals ranged in cost from $480 to nearly $700 — a difference of more than $200.

The prices analyzed in this study were based on rentals over a mix of dates throughout the next three months, and for both downtown and airport locations in regions that host the nation’s 10 largest airports. Rental types were the cheapest possible option (typically a small sedan) that allowed you to pay at the counter (as opposed to upfront in advance), and include taxes and fees.

The cheapest and most expensive rental car companies belong to the same parent company. Enterprise Holdings owns and operates the Enterprise Rent-A-Car, National Car Rental and Alamo Rent A Car brands, which together comprise a fleet of nearly 1.7 million vehicles through a network of more than 9,500 rental locations worldwide.

The Hertz Corporation, which is the parent company that operates the Hertz, Dollar and Thrifty vehicle rental brands, was a little more consistent across all of its brands in terms of pricing; their average weekly rental car prices were within about $18 of each other.

How to save on rental cars

More than $500 a week to rent a car can be a hefty chunk of your vacation budget. Thankfully, you might not necessarily be tied to paying the sticker price. Here are a few smart ways to save on rental cars: 

People arriving to their destination by air and who intend to rent a car upon landing might also save more money by booking from a nearby, off-site car rental location (as opposed to the rental car outpost located at the airport). Another NerdWallet study, also in March, found that rental cars tend to be about 20% cheaper when booked off-site versus at the airport.

While National’s car rentals tend to be among the most expensive, its loyalty program is one of the best. Members with Emerald Club Executive Elite Status receive a free car rental day for every five qualified car rentals made.