Onex Car Rental

Search and Compare from Car Companies in Onex

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 Cointrin Intl. Airport (GVA)?
Car rentals at Cointrin Intl. Airport (GVA) can be found on the arrivals level of the Swiss Sector and at the AP de Genève Cointrin Sector (F) in the French Sector. Here you can book a ride at Sixt, Dollar/Thrifty or Avis. Europcar and National/Alamo also provide some unbeatable deals.
What happens if I need to cancel my Onex car reservation?
Depending on your rental agreement, you may be eligible for your money back. Many prepaid rentals allow for a total refund if you cancel a minimum of six hours in advance of the scheduled collection time. Need to know more? If you can’t find the answer in your booking details, our Customer Service Portal is available 24/7.
Why should I rent a Onex car with Expedia?
With years of experience finding the best bargains for explorers everywhere, Expedia is a great place to rent your car. We’ve got suppliers in Onex to select from, offering everything from small economy rides to large and comfy SUVs. Why not combine your car with your flights and hotel 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 in Onex with Expedia?
Expedia makes it easy to compare costs, offers and rental companies, and to check customer ratings. Combine your Onex car rental with flight or hotel bookings and you’ll save even more.
What do you need to rent a car in Onex?
Two things — your driver’s license and a credit card in the same name. Car rental companies will offer you insurance, which is optional. But you may be asked to provide proof of other coverage if you prefer to opt out. Make sure you check with your rental agency to avoid any hassles.
Can I drive in Onex with my U.S. Driver's license?
Yes, your current U.S. License is enough for you to drive legally in Onex. But if you’re the type of traveler who likes to dot your i’s and cross your t’s, get an International Driving Permit. Apply for one in the weeks before your trip.
Can I rent a car for a month or longer in Onex?
You can rent a vehicle for a month or longer in Onex, so go on and extend your vacation! Just enter your trip dates into our long-term car rental deals page and lock in your perfect ride.
Where can I find a Onex car rental if I am younger than 25?
Some Onex outlets will rent to drivers under 25 years old, and others won’t. Policies differ between suppliers, so you’ll want to do some research. Also, find out if there are additional costs. Some places will have a surcharge for young drivers between 21 and 24. Always read through the terms and conditions so you know what to expect.