




Get helpful information to start your search for the perfect car rental in Illinois. The average price data is based on the last 12 months and was last updated on August 16, 2026.
Most popular company | Routes Car & Truck Rentals |
|---|---|
Most common car type | Standard |
Average price per day | $49 |
Cheapest price per day | $24 |
Get relevant, data-driven information to help you rent a car in Illinois, including pricing trends, ideal booking times, and more.
January
$42
February
$55
March
$61
April
$67
May
$68
June
$71
July
$77
August
$63
September
$50
October
$57
November
$56
December
$54
Avis
National
Europcar
Payless
Thrifty
Easirent
Cleanliness
Comfort
Overall
Pick-up/drop-off
Value
TravelCar
Rhodium
Find answers to frequently asked questions about car rentals in Illinois, including policies, requirements, and more. FAQs were last updated on August 16, 2026.
You’ll need to be 21 years or older to get rental cars in Illinois. However, most Illinois car rentals providers require their renters to be at least 25. Young drivers, drivers under the age of 25, will also be subjected to a daily surcharge. All drivers must present a valid US or Canadian driver's license and a credit card bearing their name before picking up any rental cars in Illinois. Those with a foreign driver's license will be required to present an International Driving Permit.
Ensure that all car occupants wear a properly secured seatbelt before driving a cheap car rental in Illinois. Passengers who are eight or younger must be secured in a child restraint system. It is a criminal offense to drive any car rentals in Illinois with a blood alcohol content of 0.08% or higher. Drivers must also give pedestrians the right of way in unmarked and marked crosswalks. In Illinois, drivers must keep to the right lane unless they are overtaking or avoiding an obstruction. Ensure you don't use your phone in any capacity while driving car rentals in Illinois as distracted driving is prohibited in the region. We recommend checking with Illinois’ Department of Motor Vehicles for recent traffic law updates before getting behind the wheel of a cheap car rental in Illinois.
The kind of Illinois car rentals you use will be influenced by your planned destination and the reason for the trip. For those looking to explore urban Illinois, an economy rental car would be ideal for squeezing through the jam-packed streets. A cargo van rental would do well for those ferrying luggage to the rural locations of Illinois. An SUV would be great for family trips and group excursions and those looking to explore the more rocky regions like Charles Mound should consider renting a four-wheel drive or rugged car rentals in Illinois.
In the past two weeks, Cheapflights users have found many deals under $46/day when booking a rental car in Illinois. The best deal a user found was for $7/day from Routes Car & Truck Rentals, booked on Aug. 15.
Routes Car & Truck Rentals offers rental cars in Illinois for about $220 per week on average.
Yes, cars are available to be rented out for an entire month in Illinois.
Generally, a month-long car rental in Illinois can be found for about $945, with the average price for a rental being around $32 a day. Book with Routes Car & Truck Rentals, to take advantage of their cheap prices and pay 88% less compared to the average price of car rentals in Illinois.
Browse through car rental deals by fuel type in Illinois. There are currently 3 fuel types to choose from with Hybrid being the cheapest ($20+).