Cheap Car Rentals in Porto Alegre from $14
This price is the cheapest per day rate found by a Cheapflights user in the last 48 hours by searching for a car rental in Porto Alegre with a pick-up date of 6/18 and drop-off date of 6/23. Fares are subject to change and may not be available at all agencies or on all dates of rental.
Porto Alegre car rentals in 2026
Get helpful information to start your search for the perfect car rental in Porto Alegre. The average price data is based on the last 12 months and was last updated on June 11, 2026.
Most popular company | UNIDAS |
|---|---|
Price of gas per gallon | $5.00 |
Average price per day | $51 |
Cheapest price per day | $14 |
Best car rental deals found in Porto Alegre
Browse through a selection of recently found affordable car rental deals in Porto Alegre. Plan your trip with ease and find the perfect rental option for your needs. There are currently 8 rental car agencies in Porto Alegre with an average daily rate of $22. Data was last updated on June 11, 2026.
Cheapflights insights for Porto Alegre car rentals
Get relevant, data-driven information to help you rent a car in Porto Alegre, including pricing trends, ideal booking times, and more.
How far in advance should I rent a car in Porto Alegre?
For the best savings on car rentals in Porto Alegre, make your reservation 7 days before pickup. The average price then is just $22/day—about 17% less than the yearly average.
What is the cheapest rental car company in Porto Alegre?
Avis is currently the cheapest rental car company in Porto Alegre with deals as low as $12.80/day found in the past two weeks. Localiza is another inexpensive option with rates as low as $13.41/day.
What is the best car rental company in Porto Alegre?
Based on Cheapflights user feedback, the highest rated car rental company in Porto Alegre is Unidas (rated 10.0/10). FOCO (rated 7.2/10 with 1 review) is also highly rated by our users.
What is the cheapest month to rent a car in Porto Alegre?
At Porto Alegre, the best time to rent a car is in August, with an average daily rate of just $22. Conversely, December is the priciest month, averaging $36 per day. Below youll find the monthly average rental prices. Note that costs can fluctuate depending on availability, booking time, and vehicle type.|1#In Porto Alegre, the best time to rent a car is in August, with an average daily rate of just $22. Conversely, December is the priciest month, averaging $36 per day. Below youll find the monthly average rental prices. Note that costs can fluctuate depending on availability, booking time, and vehicle type.
January
$23
February
$25
March
$23
April
$28
May
$26
June
$28
July
$31
August
$22
September
$22
October
$27
November
$28
December
$36
What car do most people rent in Porto Alegre?
The most popular types of cars to rent in Porto Alegre are the following: Intermediate rentals (Class Intermediate Car or similar), Economy rentals (Volkswagen Polo or similar), and Premium rentals (Fiat Toro or similar).
Which car rental company has the most locations in Porto Alegre?
In Porto Alegre, Avis, Alugue Brasil Rent a Car, KM Gaúcho Rent a Car, and BM Rent a Car have 2 locations, more than any other rental company in the area.
Top rental agencies in Porto Alegre
Explore the leading car rental agencies in Porto Alegre known for their outstanding service and extensive range of vehicles to choose from. There are currently 8 car rental companies in Porto Alegre. Reviews were last updated on June 11, 2026.
Unidas
Overview
Cleanliness
Comfort
Overall
Pick-up/drop-off
Value
View Unidas Locations in Porto Alegre
FOCO
Overview
Cleanliness
Comfort
Overall
Pick-up/drop-off
Value
View FOCO Locations in Porto Alegre
Avis
Overview
Cleanliness
Comfort
Overall
Pick-up/drop-off
Value
View Avis Locations in Porto Alegre
Alugue Brasil Rent a Car
View Alugue Brasil Rent a Car Locations in Porto Alegre
KM Gaúcho Rent a Car
View KM Gaúcho Rent a Car Locations in Porto Alegre
BM Rent a Car
View BM Rent a Car Locations in Porto Alegre
Locarx Rent a Car
View Locarx Rent a Car Locations in Porto Alegre
Thrifty
View Thrifty Locations in Porto Alegre
Car rental FAQs
Find answers to frequently asked questions about car rentals in Porto Alegre, including policies, requirements, and more. FAQs were last updated on June 11, 2026.
What is the cheapest rental car found in Porto Alegre?
In the past two weeks, Cheapflights users have found many deals under $51/day when booking a rental car in Porto Alegre. The best deal a user found was for $21/day from Unidas, booked on Jun. 8.
How much does it cost to rent a car in Porto Alegre for a week from Unidas?
From Unidas you can rent a car in Porto Alegre from about $334 per week on average.
Can I rent a car for a month in Porto Alegre?
Typically how long you can rent a car for depends on the inventory of the supplier. For Porto Alegre however, it is certainly possible to rent a car for an entire month.
How much does it cost to rent a car in Porto Alegre for a month?
Generally, a month-long car rental in Porto Alegre can be found for about $1,432, with the average price for a rental being around $48 a day. Book with Unidas, to take advantage of their cheap prices and pay 59% less compared to the average price of car rentals in Porto Alegre.
How much is a car rental in Porto Alegre for a weekend?
The average price for a weekend car rental in Porto Alegre is $0. Renting a Economy is your cheapest option if you’ve looking to save money on your weekend car rental in Porto Alegre. For the month of July, Cheapflights users have found rental cars in Porto Alegre for as low as $36/day.