Los Angeles - Ontario Intl. Airport Car Rental

Search and Compare from in Los Angeles - Ontario Intl.

Compare car suppliers to unlock big savings, and package your flight, hotel, and car to save even more.

Members save 10% more on select hotels, cars, activities and holiday rentals. Sign up.Opens in a new window

Enjoy maximum flexibility with penalty-free cancellation on most car rentals.

Beautiful view of the beach with palm trees

Black Friday: Members save 30%+

Members save 30%+ on selected hotels until 4 Dec (property time) with our Black Friday deals. Stay by 15 Dec 2025.

Frequently asked questions

Can I rent a car from Los Angeles - Ontario Intl. Airport (ONT)?
Yes, and you have plenty of choice. Car rental suppliers at Ontario, CA (ONT-Los Angeles - Ontario Intl.) include Dollar, Thrifty Car Rental, Avis, Budget and Fox Rental Cars.
What happens if I need to cancel my Ontario, CA (ONT-Los Angeles - Ontario Intl.) car reservation?
Whether you have to stay back at work or your pet fell ill, we know that life happens and plans can shift. That’s why most bookings can be cancelled without penalty. Prepaid rentals allow for a full refund if you cancel a minimum of six hours before collecting the car. Your cancellation policy should contain all the information you need. Also, our Customer Service Portal is available 24/7.
Why should I rent an Ontario, CA (ONT-Los Angeles - Ontario Intl.) car with Expedia?
With years of experience finding the best deals for travelers across the globe, Expedia is a great place to rent your car. We have an excellent range of rides to take your pick of, from economy rides to large and comfy SUVs. Why not bundle your Ontario, CA (ONT-Los Angeles - Ontario Intl.) rental with your hotel and flights and save even more? From our vacation packages to our exclusive offers and member prices, Expedia will get you on the road for less.
How do I find the best car rental deals at Ontario, CA (ONT-Los Angeles - Ontario Intl.) with Expedia?
Check reviews and ratings, choose your car type and compare offers from leading brands. Expedia makes it a cinch to get the best deal on your rental wheels. Combine your Ontario, CA (ONT-Los Angeles - Ontario Intl.) car rental with flight or hotel bookings and hit the road with even bigger savings.
What do you need to rent a car from Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
Unless you’re intending to opt out of the rental company’s insurance policy, usually all that’s needed is your driver’s license and a credit card in your name. To avoid any unnecessary delays, check in advance with your selected company to make sure there are no additional requirements prior to the pickup date.
Can I rent a car for a month or longer from Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
Hop behind the wheel of a long-term rental soon after you collect your luggage at Ontario, CA (ONT-Los Angeles - Ontario Intl.). With Expedia’s affordable long-term car rental deals, there’s no need to rush your road trip. Usually, the longer you rent, the cheaper the price!
Where can I find an Ontario, CA (ONT-Los Angeles - Ontario Intl.) car rental if I am younger than 25?
This will come down to a few things. We recommend researching Ontario, CA (ONT-Los Angeles - Ontario Intl.) rental car companies to find out if they rent to drivers younger than 25, and if there are any extra charges that apply. The best way to do this is to read the terms and conditions. No one likes to be surprised at the rental desk, so make sure you understand what rules and costs may affect you.