ENJOY $15 OFF BASE RATES
When you spend $175 on 3+ days
FROM 4:30 AM TO MIDNIGHT: Park & lock the car. If an agent is not available, place the completed contract & the keys in the key drop box.
FROM MIDNIGHT TO 4:30 AM: Park & lock the car. Avis is closed, so take the keys to the security guard.
How it Works:
Customer can fill out contract and drop keys inside the drop box located at the location.
Lock the vehicle and place the keys and contract in the key drop box. The box is labeled Avis Budget After Hours Returns.
Don't forget to remove all your belongings from the vehicle prior to returning the keys.
A vehicle that is returned after hours will not be checked in until the next business day. If returning after hours when a location is closed, the customer is responsible for the vehicle until the satisfactory check in of the rental vehicle the next business day.
AIRLINE PASSENGERS: Follow signs to the baggage claim area. Proceed downstairs to the street level and exit the terminal. Take the common airport shuttle bus to the Ground Transportation Center.
WALK-UP RENTERS Follow airport signs for Rental Car Return. They will lead to the Avis car rental lot.
RENT-A-CAR AND FUN/LUXURY CAR AND 4X4 LOCATION
AIRLINE PASSENGERS: Follow signs to the baggage claim area. Proceed downstairs to the street level and exit the terminal. Take the common airport shuttle bus to the Ground Transportation Center. Show your drivers license and identify yourself as a Preferred Renter to the Avis rental agent in order to receive your preprinted rental document and keys.
Reserve a rental car from Avis at ONT for quality service and a smooth experience. From compact cars to luxury vehicles and SUVs, our fleet offers options to suit a range of needs.
When you spend $175 on 3+ days
Save up to 30%
Get a Free upgrade on select vehicles
Find the Avis ONT rental car return location at the address listed above. This is the same address as the rental car pickup, and you can get there by following rental car return signs as you approach the airport. Once you’ve returned your vehicle, you can head to the terminal to board your flight.
Are you flying into Ontario International Airport in Ontario, CA? If so, Avis car rental at the airport is a convenient way to start your trip. You’ll save time by picking up your car rental in Ontario, CA, right at the airport. Simply follow the signs to the baggage claim area as you get off your flight, then take the shuttle a few minutes away to the Avis rental counter. With the keys in hand, you can quickly jet off to the Ontario Convention Center, Auto Club Speedway, or any of the other main attractions in the greater Los Angeles area. Download the Avis app to make your car rental reservation even easier.
Free Shuttle Service
Open Until Midnight
Luxury and Economy Car Models

Ontario International Airport is conveniently located near desirable attractions, restaurants, and hotels. Check out the list below to learn some of the best places to explore nearby. Once you’ve picked up your car rental at Ontario airport, you’ll be ready to hit the road and enjoy your stay.
Planes of Fame Air Museum: Museum with historical aircraft on display and frequent demonstration flights
Galleano Winery: Tours and tasting opportunities available at this picturesque winery
The ONT airport has been named the Ontario International Airport since 2015. The airport has undergone several name changes over the years. The airfield’s first name was Latimer Field. At different times, ONT has also been called the Ontario Municipal Airport and the LA/Ontario International Airport. (Source)
It’s considered medium-sized. While not as large as LAX, ONT is one of the fastest-growing airports in America.
ONT is moderately busy, with the busiest times being mornings from 5:00 AM to 9:00 AM and evenings from 7:00 PM to 11:00 PM. While the TSA recommends arriving at the Ontario International Airport about two hours before your flight, the average passenger flow is under an hour. (Source)
Terms and Conditions
Cancellation Policy