Welcome to SIXT rent a car Milwaukee! At our convenient location, you’ll be able to choose from our large selection of car rentals, such as practical compact cars, sedans, sports cars and convertibles, and premium SUVs. We provide a first-class driving experience thanks to our range of luxury car rentals from leading brands like BMW, Mercedes, Audi, and Ford. WI has no shortage of beautiful drives and road trips, so be sure to choose one of our weekly, long-term, and one-way car rental deals so you have more freedom to explore more and at your own leisure.
While some customers praised individual staff members for their helpfulness and friendliness, many reported issues with unprofessional behavior and poor customer service overall.
Billing Issues
Numerous reviews highlighted problems with unexpected charges, damage claims, and difficulties in resolving billing disputes, leading to frustration among customers.
Vehicle Condition
Several customers noted receiving vehicles with pre-existing damage or poor maintenance, contributing to dissatisfaction with their rental experience.
Sales Tactics
Many reviews mentioned aggressive upselling tactics at the rental counter, which made customers uncomfortable and led to feelings of being misled.
Mixed Experiences
While some customers had positive experiences with specific employees and appreciated the vehicle upgrades, the overall sentiment was marred by negative experiences related to service and billing.
AA
Andrew
5 days ago
5.0
La atención de Mirian fue excelente la chica del personal de esta noche me aclaró todo
BB
Brittani
Dec 22, 2025
1.0
ZERO Stars. Do your homework and just search this company and lawsuits. Just in 2025 they were found guilty of falsifying damages on rentals and charging insane fees to customers. They would not work with my insurance with any aspects of this matter or myself when I called. DO NOT RENT HERE, even if it's cheap. Avoid the headache and take a million photos and videos of the vehicles throughout your whole rental.
DS
David Sheeley
Dec 4, 2025
5.0
I enjoyed renting a car from Sixt. All employees were helpful and friendly, especially Isela, who helped me at the counter at Milwaukee’s airport. Isela led me through my first time renting from Sixt, and she was knowledgeable, courteous, engaging, personable, and most of all, humorous and entertaining with her witty banter. One in a million employees!
JA
Jahara Adan
Dec 2, 2025
5.0
just wanted to take a moment to recognize Isela for providing outstanding customer service. She went above and beyond to help me, and her professionalism, kindness, and attentiveness truly stood out. I’m so glad your team has someone like her — she made my experience exceptional. I will definitely return because of the great service she provided!
JM
Joya Montgomery
Nov 29, 2025
1.0
NOT HAPPY at all. We rented in MKE on October 30-November 6. When rented the "mystery car." When arrived they were very pushy to upgrade the vehicle, get the fuel plan and insurance coverage. So pushy it was uncomfortable. After refusing to upgrade, they upgraded us at no cost ( we are guessing they did not have a mystery car for us).
They gave us a Volvo, we noted damage and the receipt holder indicated if you notice damage to scan QR code and video it. We did and went on our way. We hunt there, we picked up our car stoped at Walmart in OshKosh and drove the rest of our way (2.5 hrs for airport) to a remote hunting cabin. The car never moved til we left on Nov 6th. We had an early flight out, so our car was turned into airport very early, no one was there to look at the car. We did the key drop and flew home. Ten days later we get an email indicating damage. We thought it was in reference to the video we sent. NOPE, 10 days after that we received an invoice for rim damage for over $700. We did not cause any damage while using the car, we were not anywhere near anything that could cause damage. I emailed the company with no response yet. In reviewing other reviews, this seems to be a somewhat common practice. I will be looking more into this.
We travel a lot and rent cars often. WE WILL NEVER RENT FROM SIXT again. I hope you read this and others and don't rent from them either.
Very Frustrated
Thank you,
JM
Frequently Asked Questions About SIXT Rent A Car Milwaukee Airport
What types of vehicles can I rent at SIXT Rent A Car Milwaukee Airport?
You can rent a variety of vehicles including compact cars, sedans, sports cars, convertibles, and premium SUVs from leading brands like BMW, Mercedes, Audi, and Ford.
What are the operating hours of SIXT Rent A Car Milwaukee Airport?
The rental location is open every day from 7:00 AM to 11:59 PM.
Can I book long-term car rentals at this location?
Yes, SIXT offers weekly, long-term, and one-way car rental deals for more flexible travel options.
What payment options does SIXT Rent A Car Milwaukee Airport accept?
They accept American Express, Diners Club, Discover, Mastercard, and Visa credit cards.
How can I contact SIXT Rent A Car Milwaukee Airport?
You can reach them via phone at +1 888-749-8227 or email service@sixt.com.
Is there a mobile app available to book rentals with SIXT?
Yes, the SIXT App is available on both the Apple App Store and Google Play for easy booking and management of your rental.
Are there any other car rental agencies near SIXT Rent A Car Milwaukee Airport?
Yes, nearby car rental agencies include Thrifty Car Rental, Hertz Car Rental, Alamo Rent A Car, National Car Rental, and Avis Car Rental at Milwaukee Mitchell Field Airport.
What dining options are available near SIXT Rent A Car Milwaukee Airport?
Nearby dining places include Famous Famiglia pizza restaurant, Quiznos Sandwich Restaurants, Auntie Anne's Pretzels, Chili’s Grill & Bar, Cousins Subs, Dunkin', Johnny Rockets, Starbucks, and Miller Brewhouse.
What airport facilities are close to SIXT Rent A Car Milwaukee Airport?
Close airport facilities include the Main Terminal, Gen Mitchell Int'l Departures, General Mitchell Airport Shuttle Pickup Area, Moving Walkway, and airline offices such as Frontier Airlines, Southwest Airlines, American Eagle OPS /ATO, and Air Canada.
Can I earn loyalty miles when renting from SIXT?
Yes, SIXT offers the Miles & More program where you can earn miles on your rentals.