Cheap Car Rentals in South Island from $18
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 South Island with a pick-up date of 1/13 and drop-off date of 1/22. Fares are subject to change and may not be available at all agencies or on all dates of rental.
Compare car rental deals in South Island by type
Here are the best South Island small car rental prices found by Cheapflights users in the past 7 days:
Here are the best South Island SUV rental prices found by Cheapflights users in the past 7 days:
Here are the best South Island van rental prices found by Cheapflights users in the past 7 days:
Here are the best South Island pickup truck rental prices found by Cheapflights users in the past 7 days:
Best car rental deals found in South Island
Browse through a selection of recently found affordable car rental deals in South Island. Plan your trip with ease and find the perfect rental option for your needs. There are currently 8 rental car agencies in South Island with an average daily rate of $42. Data was last updated on December 12, 2025.
Cheapflights insights for South Island car rentals
Get relevant, data-driven information to help you rent a car in South Island, including pricing trends, ideal booking times, and more.
How far in advance should I rent a car in South Island?
Book your rental car in South Island 41 days before your pickup date to maximize your savings Car rental prices are around $33/day on average when booked 41 days ahead, which saves you 13% off the usual average price.
What is the best car rental company in South Island?
Based on Cheapflights user feedback, the highest rated car rental company in South Island is keddy by Europcar (rated 10.0/10 with 1 review). EZI (rated 9.8/10 with 7 reviews) is also highly rated by our users.
What is the cheapest month to rent a car in South Island?
The cheapest month to rent a car in South Island is May where you can expect to pay $22/day on average. The most expensive month to rent a car in South Island is December ($68/day on average). The average daily rental price for each month is shown below. Keep in mind that prices will vary based on availability, when you book, and the type of car you rent.
January
$50
February
$49
March
$38
April
$35
May
$23
June
$26
July
$38
August
$33
September
$31
October
$30
November
$36
December
$68
What car do most people rent in South Island?
SUV rentals (Kia Sportage or similar) are the most popular option for those visiting South Island. Economy rentals (Toyota Yaris or similar) are also a popular choice, followed by Intermediate rentals (Toyota Camry or similar).
Top rental agencies in South Island
Explore the leading car rental agencies in South Island known for their outstanding service and extensive range of vehicles to choose from. There are currently 8 car rental companies in South Island. Reviews were last updated on December 12, 2025.
keddy by Europcar
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EZI
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Avis
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Dollar
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Ace Rental Cars
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Hertz
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Thrifty
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Alamo
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Car rental FAQs
Find answers to frequently asked questions about car rentals in South Island, including policies, requirements, and more. FAQs were last updated on December 12, 2025.
What is the cheapest rental car found in South Island?
In the past two weeks, Cheapflights users have found many deals under $48/day when booking a rental car in South Island. The best deal a user found was for $21/day from GoldStar, booked on Dec. 6.
How much does it cost to rent a car in South Island for a week from EZU Car Rental?
EZU Car Rental is a popular option for travelers looking for car rental in South Island. You can expect the average cost of rental car to be about $850 per week.
Can I rent a car for a month in South Island?
Yes, renting a vehicle in South Island for a month is certainly possible.
How much does it cost to rent a car in South Island for a month?
Our recent data shows that GoldStar can potentially be 94% below the average car rental price in South Island. Check prices and availability for GoldStar and save on this extended rental. The cost of renting a vehicle in South Island is on average $3,641 a month or $121 a day. Search on Cheapflights for the most updated pricing and availability for your South Island car rental.