Where to look for lower rental rates

The cheapest car rental rates come from comparing prices across multiple booking sites at the same time, because the same car on the same dates costs different amounts depending where you book. Start with the major aggregators — Kayak, Autoslash, and Priceline all pull rates from rental companies and let you see them side by side. Then check the rental company websites directly (Enterprise, Hertz, Budget, Avis, National) because some run promotions only on their own sites.

Timing matters. Booking 1 to 3 weeks ahead usually gives you the lowest rate for a given car type. Booking too far in advance (more than 6 weeks) or too close to your rental date (within 48 hours) typically costs more. If you are flexible on dates, check the price for each day of the week — mid-week rentals are often cheaper than weekend pickups.

Location affects price significantly. Renting from an off-airport location is usually cheaper than renting at the airport terminal, sometimes by 20 to 30 percent, because airports charge facility fees that get passed to you. If you are flying in, ask whether it makes sense to take a rideshare to a nearby rental office instead. Some cities have multiple rental locations; a branch in a less busy neighborhood may quote lower rates than the downtown office.

Key Takeaways

  • Compare prices on aggregator sites like Kayak and Autoslash, then check the rental company websites directly, because rates vary by booking platform.
  • Book 1 to 3 weeks in advance for the lowest rates; booking too early or too close to your rental date usually costs more.
  • Renting from an off-airport location saves 20 to 30 percent compared to airport terminals because of facility fees.
  • The smallest car class available is almost always the cheapest, and fuel costs are lower for compact or economy cars than for larger vehicles.
  • Decline the rental company's insurance if your personal auto policy or credit card already covers rental cars, which saves $15 to $30 per day.

Choosing the right car class to keep costs down

The car class you select has the biggest impact on your daily rate. Economy and compact cars rent for the least; mid-size and full-size sedans cost more; and SUVs and trucks are the most expensive. If you do not need the extra space, choosing the smallest available class cuts your rental cost by 30 to 50 percent compared to an SUV.

Fuel economy also matters to your total cost. A compact car might use 5 to 7 gallons per 100 miles driven, while an SUV uses 10 to 15 gallons for the same distance. Over a week-long rental with 500 miles of driving, that difference can add $40 to $80 to your bill. Check the rental site's fuel economy estimate for each car class before you book.

Be aware that rental companies sometimes run out of the cheapest car class and upgrade you to a larger vehicle at no extra charge — this is a genuine perk. But if you prepay for a specific class and they upgrade you, you still pay the prepaid rate. If you book without prepaying and they upgrade you, you pay the higher rate for the larger car. Prepaying locks in your rate and protects you from price increases, so it is usually the safer choice.

Avoiding hidden fees and extra charges

The quoted daily rate is rarely the final price. Rental companies add taxes (which vary by state and city, ranging from 10 to 25 percent of the base rate), facility fees at airports, and optional add-ons like insurance, GPS, and fuel plans. Read the full price breakdown before you confirm your booking — the total cost should be visible before you enter your payment information.

Fuel is a major hidden cost. Rental companies offer three fuel options: prepay for a full tank at their price (usually $5 to $7 per gallon, higher than gas stations), return the car with a full tank yourself, or return it empty and pay their per-gallon rate. Prepaying for fuel makes sense only if you know you will use most of the tank. If you are renting for a short trip, returning the car with a full tank yourself is almost always cheaper — fill up at a gas station near the rental location before you return the car.

Insurance is another major add-on. Rental companies charge $12 to $30 per day for collision damage waiver (CDW) or loss damage waiver (LDW). Before you book, check whether your personal auto insurance covers rental cars — most policies do. Also check your credit card's rental car coverage; many premium cards cover damage and theft automatically. If you have either coverage, decline the rental company's insurance and save hundreds of dollars on a week-long rental.

Using discounts, memberships, and loyalty programs

Rental companies offer discounts for membership in AAA, AARP, military service, and corporate programs. If you belong to any of these groups, enter your membership number when you book — the discount typically ranges from 10 to 25 percent off the base rate. Some employers negotiate corporate rates with rental companies; check your company's travel portal or ask your HR department whether a code is available.

Loyalty programs at individual rental companies (Enterprise Plus, Hertz Gold, Avis Preferred) waive some fees and let you skip the counter, but they do not usually lower the daily rate. They are worth joining if you rent frequently, but they should not be your primary reason to choose one company over another.

Credit card rewards programs sometimes offer rental car discounts through their travel portals. Check your card's website before you book directly with the rental company — you might earn extra points or get a percentage off through the card's portal. The discount is usually small (5 to 10 percent), but it adds up on longer rentals.

What to check before you confirm your booking

Before you click "book," verify the pickup and return locations, dates, and times. Rental companies charge a late return fee (usually $40 to $75) if you bring the car back after your reserved time, even by 30 minutes. If you are unsure whether you can return the car on time, book an extra day — it is cheaper than paying a late fee.

Check the cancellation policy. Most rental companies allow free cancellation up to 24 hours before pickup, but some charge a fee if you cancel within 24 hours. If your plans might change, book with a company that offers free cancellation without a time limit, or pay attention to the important date.

Read the damage and mileage terms. Most rental cars come with unlimited mileage, but some budget companies charge per mile (usually $0.10 to $0.25 per mile). A 500-mile trip could cost an extra $50 to $125 if you do not notice the mileage charge. Also check the damage policy — you need to know whether you are responsible for minor dings and scratches or whether the rental company covers normal wear and tear.

Comparing rental companies by price and reliability

The major national chains (Enterprise, Hertz, Budget, Avis, National, Alamo) have locations in most cities and airports. They tend to have similar pricing, but rates vary by location and date. Budget and Alamo are typically the cheapest; Enterprise and Avis are mid-range; Hertz and National are often the most expensive. However, this is not a hard rule — always compare the actual quote for your dates and location rather than assuming one company is always cheaper.

Regional and local rental companies sometimes undercut the national chains, especially in smaller cities. Check Google Maps or Yelp for rental offices near your destination and call for a quote. Local companies often have lower overhead and can offer better rates, though they may have fewer locations and less flexible cancellation policies.

Customer reviews on Google, Yelp, and the Better Business Bureau can tell you which companies have problems with damage claims, surprise fees, or poor customer service. A slightly higher daily rate from a company with good reviews is often worth it to avoid disputes when you return the car.

Frequently Asked Questions

Is it cheaper to rent a car for a week or to rent by the day?

Weekly rates are almost always cheaper per day than daily rates. A week-long rental might cost $25 per day, while renting the same car for individual days could cost $35 to $45 per day. If you need a car for 5 or more days, always check the weekly rate — it is usually lower even if you only need the car for part of the week.

Can I negotiate the rental rate or ask for a lower price?

Rental companies do not negotiate rates at the counter, but you can shop around before you book. If you find a lower rate at a competitor, book with that company instead. Some rental companies will match a competitor's rate if you call their customer service line before you pick up the car, though this is not may provide.

What happens if I return the car with damage?

The rental company will assess the damage and charge you for repairs. If you declined their insurance, you pay the full cost. If you accepted their insurance (CDW or LDW), you typically pay a deductible ($500 to $1,500) and the insurance covers the rest. Take photos of the car's condition before you drive away and when you return it to document any existing damage.

Should I prepay for gas or return the car with a full tank?

Returning the car with a full tank yourself is almost always cheaper. Rental companies charge $5 to $7 per gallon, while gas stations charge $3 to $4 per gallon. Fill up at a station near the rental location 15 minutes before you return the car. Prepaying for gas only makes sense if you know you will use nearly the entire tank.

Do I need to buy insurance from the rental company?

Check your personal auto insurance policy and your credit card's rental car coverage first. Most personal policies and premium credit cards cover collision, theft, and liability on rental cars. If you have either coverage, decline the rental company's insurance and save $15 to $30 per day. If you do not have coverage, the rental company's collision damage waiver is worth buying.