A SIXT car rental at Denver Airport can get you around the Mile High City in luxury. To find us, go to the baggage claim area on Level 5 and then follow signs to the SIXT shuttle stop on the north end of Island 4. When booking, choose from standard sedans and SUVs or treat yourself with a luxury model from Range Rover or Mercedes-Benz. Our flexible rental periods make it easy to book a one-day rental to explore Denver, a weekly rental for some hiking in the Rocky Mountains or a long-term rental for the ultimate Colorado ski vacation.
Details
Wheelchair accessible entranceAvailable
Location
SIXT Rent a Car - Denver International Airport (DEN)
Many customers praised the friendly and helpful staff, particularly mentioning individuals like Brooke, Fatima, and Dylan for their exceptional service.
Vehicle Condition
Several reviews highlighted issues with vehicle cleanliness and maintenance, including reports of dirty cars and mechanical problems.
Billing Issues
Numerous customers reported problems with unexpected charges and disputes over damage claims, leading to frustration and dissatisfaction.
Rental Process
While some customers appreciated the quick and efficient rental process, others experienced delays and confusion, particularly regarding vehicle availability and upgrades.
Overall Experience
Feedback was mixed, with some customers expressing satisfaction and loyalty, while others vowed never to rent from Sixt again due to negative experiences.
JM
JUSTIN MARTINEZ
3 days ago
2.0
Initial thought:
1. Nice Car just another rental .
2. Place seems a little disorganized. They dont seem to stress about the car with ANY kind of preliminary walk through or inspection. Oh well i got insurance anyway .
3. Drop off with no incidents. Good to be back home . Again no inspections other than checking for keys and that gas had been topped off .
4. A week later I get an email saying they have found damages (which is a plural word ) including chip to passenger side window of the car .WTH Sixt, What are you guys pulling now ?
5 Final thought . Congrats your little make believe chip in windshield that you are trying to blame on me is going to cost you business and more than any little money you get from insurance for a little chip . # Best Friends run a Travel Agency. Do not use SIX T!
JC
James Carlson
5 days ago
2.0
I'm waiting to finalize my review based on the outcome of a couple claims that Sixt is claiming. I fly in multiple candidates to interview every year and have never had an issue with Sixt. I've always liked the cars, and the service. I've been renting with them for over 10 years, and have probably 40 candidates that I've set a rental up through them. All of a sudden, I've had two claims in the past three weeks from two candidates. I find this highly suspicious. For the second claim, I was able to see a picture...but I do not see any damage what so ever. I tried calling to voice my concerns, but spoke with someone off shore who said since I wasn't the driver, they couldn't help me. I'd love to have the confidence to continue renting from them on a regular basis, but unless I can speak with someone and get resolution, my trust in Sixt (at least the DIA Sixt) is gone.
YJ
Y. J.
Nov 11, 2025
2.0
I've given this more than one star only because the car itself was good and the shuttle drivers were very kind.
However, the sales process was deeply manipulative. We were pressured into buying a "highway express pass" that was completely useless, as the express lanes were closed the entire time. The agent knew we were only making a single round trip between Denver and a ski resort, so they had sufficient information to know this pass wasn't economical for us. Instead, they hid this knowledge and implied it would save us money, which is disgraceful.
Furthermore, when selling us a vehicle upgrade, the agent was dishonest. They claimed our original booking was for a BMW X1 (it was for an X5 or similar—a ridiculous comparison). They then offered an "upgrade" for "$70," deliberately omitting that this was a $70 per-day charge, not a flat fee. This is a classic bait-and-switch.
DF
Dave F
Nov 11, 2025
2.0
All of the service people dealing with getting and returning the car were excellent, as were the guys driving the shuttle. The rental car was also great and I had no issues with it.
My biggest gripe is that the person behind the desk after I got there, who completely ignored that I had reserved one kind of car and tried to upsell me with a much more expensive car along with a way more expensive insurance option than what I reserved -- more than twice the price that I reserved on the website! It seemed very much like a bait-and-switch, and I worry about tourists who don't have a strong grasp on the English language.
And they also nickle-and-dime you for all kinds of options that aren't really worth the cost. For example, I could pay a $40+ fee to not have to return the car with a full tank of gas. Maybe for a big SUV, that might be worth it, but for the sedan I rented, it only cost $20 to fill up the tank anyway. And the daily charge to use the in-car nav system is also a huge waste of money if you have a nav program like Google Maps on your phone. I really don't think I will ever use this company again.
LS
Laura S
Nov 6, 2025
1.0
NEVER EVER RENT A CAR FROM SIXT – RENTER BEWARE
Absolute worst car rental experience ever. Mine is a story of turning a 1-day car rental (totaling $181.21) into a false damage claim of $1,037.21 that I’ve been fighting for a full year so far with no end in sight. Sixt’s history of aggressively pursuing shady damage claims resulted in a class action lawsuit where Sixt has agreed to an $11.07 million settlement to resolve a lawsuit alleging it systematically imposed unfair, deceptive, and unauthorized charges for rental car damages. The settlement received preliminary court approval in February 2025, with the final approval hearing on July 15, 2025. Google “Sixt Class Action Lawsuit” to find all the slimy details. I wish I had known this beforehand, as I never would have rented a car from Sixt.
Dealing with the Sixt Claims Department is like pounding your head against a brick wall. You will not find any sign of intelligent life there. They are unresponsive and their emails are incoherent. Most importantly, Sixt is unaware of the terms and conditions of their own rental contract and they refuse to abide by them. I have sent Sixt photographs proving that their damage claim is false. Sixt’s only tactic is to stonewall and then send you to subrogation and then to collections. Reading the 1-Star reviews, you will find that this tactic coerces most people into giving up and paying.
I am now fighting the claim with Summit AR which is Sixt’s chosen collection company. No sign of intelligent life there either.
Frequently Asked Questions About SIXT Rent a Car - Denver International Airport (DEN)
Where is SIXT Rent a Car located at Denver International Airport?
SIXT Rent a Car is located at Denver International Airport, 23410 E. 78th Ave, Denver, CO 80249-6387. You can find the SIXT shuttle stop on the north end of Island 4 on Level 5 at the baggage claim area.
What types of vehicles does SIXT offer for rental at Denver Airport?
SIXT offers a variety of vehicles including standard sedans, SUVs, luxury models from Range Rover and Mercedes-Benz, convertibles, sports cars, and passenger vans.
What are the operating hours for SIXT Rent a Car at Denver International Airport?
SIXT is open daily from 5:30 AM to 11:59 PM and additionally from midnight to 2:00 AM for early or late rentals.
What payment methods are accepted at SIXT Rent a Car in Denver?
SIXT accepts American Express, Diners Club, Discover, MasterCard, and Visa credit cards for payment.
Can I cancel or rebook my car rental with SIXT free of charge?
Yes, SIXT offers free cancellation and rebooking options for your reservation.
How can I contact SIXT Rent a Car Denver Airport?
You can contact SIXT at +1 888-749-8227 or email service@sixt.com for customer service and inquiries.
Does SIXT Rent a Car offer services for long-term rentals?
Yes, SIXT offers flexible rental periods including one-day, weekly, and long-term rentals, perfect for exploring Denver or taking extended trips in Colorado.
What nearby parking options are available for SIXT Rent a Car customers?
ParkDIA and Cell Phone Lot are nearby parking options at Denver International Airport that customers can use when renting from SIXT.
Are there dining options near SIXT Rent a Car to grab a meal or snack?
Yes, nearby dining options include Baja Fresh Mexican Grill, Auntie Anne's, Slice (pizza), Dunkin', Schlotzsky's / Cinnabon, and Final Approach DIA for convenient meals and snacks before or after your rental.
How can I get around Denver International Airport and find SIXT Rent a Car with nearby transportation services?
Master's Transportation - Denver offers bus services nearby, and the Enterprise Rent-a-Car Bus Stop provides additional transportation options to navigate the airport and reach SIXT Rent a Car.