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Ancillary Services

On-line Check In

Save time during the pick-up process of your car with our Online Check-in service. Report your documents online before your arrival and minimize the time you will need to pick up the vehicle.

Automated Check In Machine

You can do an online check-in locally, by the time you arrive at the location.

Fast Track Service

Our Fast Track Service allows customers to pick up the vehicle from a dedicated booth without any delays.


Think green! We can send you the invoice and any document of your rental instantly, wherever you are located.

Delivery – Collection

No need to come to us. Plan your trip accordingly and we will be there to deliver or collect your rental.

Free Cancellation Service

If you cancel up to 24 hours before the scheduled pick-up of the vehicle there is no charge. For cancellations made within less than 24 hours after the pick-up of the vehicle the cancellation penalty is equal to the amount paid during the booking / booking confirmation.

Hotel Deliveries

Need to save some time or you do not want to lose the comfort of your hotel? AutoUnion can drop the vehicle at your Hotel.

24/7 Customer Support

Around the clock, global support for our customers.

100% Online Service

With 100% online services, we can utilize technology to work together from anywhere!

Frequently Asked Questions

Click on “Book your car now” button at the home page of autounion.gr.

Fill in the required information in the “Book your car now” form.

You need:

  • Pick-up and return date and time.
  • The pick-up location. If the return location is different, please select the “return at a different location” tick box.
  • Your email if you are a repeater customer to benefit the discount.

On the second step, choose your preferred vehicle category and complete your reservation by filling in your personal data and credit card details.

The car on your voucher represents the vehicle for the class (group) you have rented. The named cars serve only as guides (as typical examples of the size, specifications and performance of vehicles category).

Bookings are subject to a specific car group, which includes several different car models with similar features. You can ask for a specific model during the pick-up, whether it is available.

All major Credit cards are accepted. Pre-paid and debit cards are not accepted. Please contact our customer care to confirm the applied policy for the pick-up location.

Upon successful completion of your reservation, you will receive a confirmation email on the address you provided during your reservation.

If you have already booked a car with autoUnion, you can modify, cancel or print your voucher. This service is available for reservations booked online only. In any other case, please contact our Customer Service team. Click on “Book your car now” button at the home page of autounion.gr and then choose “Manage your Booking”.

All drivers must hold a valid driving license. Minimum and maximum age limits are applied thought out autoUnion’s network.

Drivers must have held a full license for a minimum of 1 to 3 year depending the pick-up location.

Drivers must also show their passport or ID on collection as additional proof of identity and finally a credit card on their name.

Only drivers mentioned in the rental agreement are allowed to drive the vehicle. You can add additional drivers to your rentals online or locally by presenting their documents.

One-way rentals are allowed between specific stations. When you change the return location a higher rate may apply.

There is a 59 minutes grace period. After the grace period has expired a full day’s charge will apply.

You should contact the police immediately, and then contact the renting location and advise them on the situation.