Why rent your car with Authentik USA
Best price guarantee
Found a cheaper car rental elsewhere? We'll refund the difference and offer you an additional 5% discount on your car rental in USA.
Transparency & Simplicity
✓ Free cancellation
✓ No hidden fees
✓ USA Specialist
✓ 1% for the planet
What Authentik travellers say.
TOP 5 car road trips in USA
Authentik travel blog
What Authentik Travellers Say
BEST RENTAL
We chose Authentik to be sure of getting a good car. We were not disappointed. Very easy to pick up and return.
GREAT RENTAL
Comfortable car, good price.
Easy to pick up and drop off the car. Perfect experience.
Rental with Dollar
No problem with the rental, good car, no issues picking up or returning the vehicle. The Authentik USA document met all requirements.
EXCELLENT SERVICE
Very satisfied with our car rental. Our agent was always available, at the time of booking but also once we were there.
CAR RENTAL WITH AUTHENTIK
Authentik offers very competitive rates that include insurance and one-way rental (at least when you pick up the car in California).
4.3 / 5 according to 907 reviews
Car Hire FAQs for Portland, ME
Car Rental in Portland, Maine
Enjoy the best guaranteed rates for your car rental in Portland (Maine) thanks to our advantageous price comparator.
Book with peace of mind, with free cancellation up to 24 hours before pickup. Our offers include unlimited mileage, essential insurance, and all applicable taxes. Also choose the $0 deductible option or a one-way rental for more flexibility.
If you book your car in Portland (Maine) with our online comparator and find a lower rate on another site, we will refund the difference, less 5%, thanks to our best price commitment.