Cheap AVIS Car Rentals at Houston George Bush Intercntl. Airport, IAH

Many rental companies require payment by credit card and may not accept debit cards. If you only have a debit card, check the rental company's payment policies in advance and look for suitable options.

Ask if there are extra charges for picking up at the airport versus off-site locations.

To save on refueling costs when departing from Airport, look for deals with a 'full to full' tank fuel policy, or even better, a free tank fuel policy, as opposed to a 'half-full to full' one.

If you don’t find what you need at Airport with , you might discover more car rental options in Houston, which can occasionally be cheaper. However, keep in mind that the additional cost of transferring from Airport to Houston might result in higher overall expenses compared to picking up your rental car directly at the airport.

Before your trip, confirm if your rental includes roadside assistance. This can be crucial in case of breakdowns or emergencies during your rental period.

Be aware that some rental companies impose age restrictions or additional fees for drivers under 25. Make sure to check the company’s age policy when booking.

Some rental companies offer a free tank of fuel with your rental. Be sure to understand the terms, including how much fuel you need to return the car with and any potential fees for not meeting these conditions.

Before renting a car, check if your personal car insurance covers rental losses. Many personal auto insurance policies and credit cards offer coverage for rentals, which could save you from extra insurance fees.