SIXT Car Rental - Denver International Airport (DEN)

🚙 Rental Cars · Denver

25

total experiences

88%

replied on google

Most reported issues

AI-classified. Tap a category to filter the experiences below.

Experiences

BadCustomer ServiceFrom Google Reviews
Jul 20, 2026

Lost and found department failed to return wallet left in rental car

Business reply on Google

Hello David, I sincerely apologise for the inconvenience and frustration you've experienced with retrieving your son's wallet. It's concerning to hear about the lack of communication from our Lost and Found department, and I understand how important this matter is to you. Please know that your feedback is invaluable, and we are committed to improving our customer service processes. Thank you for bringing this to our attention. Thanks, The SIXT team - Jan

WorstMisleading & FraudFrom Google Reviews
Jul 15, 2026

Charged for damages not incurred; company pictures dated after return.

Business reply on Google

Hello Dayna, I’m truly sorry to hear about your recent experience and the issues you faced with the vehicle and subsequent charges. It’s concerning to learn about the discrepancies in the inspection process and the charges for damages. We take such matters seriously and would like to investigate this further to address your concerns. Please reach out to our customer service team so we can assist you directly. Thanks, The SIXT team -Michelle

BadBilling & ChargesFrom Google Reviews
Jul 10, 2026

Received incorrect vehicle and an erroneous express lane charge

Business reply on Google

Hello Peter, I’m sorry to hear about your experience with the vehicle and the unexpected charge for the express lanes. We strive to provide quality service and vehicles, and it's disappointing to know we fell short in your case. Please know that your feedback is important to us, and we are looking into this matter to ensure it is resolved. Thank you for bringing this to our attention. Thanks, SIXT Car Rental - Denver International Airport (DEN) - Jan

WorstBilling & ChargesFrom Google Reviews
Jul 2, 2026

Customer billed for damages after being told invoice was closed.

Business reply on Google

Hello Kaia, I’m truly sorry to hear about your experience with us and the challenges you faced during your rental. It’s concerning to learn about the issues with the car upgrade, the delay, and the subsequent billing and communication problems. We appreciate your feedback as it helps us improve our services and ensure better experiences in the future. If there’s anything further you’d like to discuss, please feel free to reach out. Thanks, The SIXT team -Kervin A.

Very BadBilling & ChargesFrom Google Reviews
Jun 22, 2026

Company tried to charge for bird dropping 'damage' on rental car

Business reply on Google

Hello Sharon, I’m sorry to hear about your experience and the concerns you’ve raised regarding damage claims. We strive to maintain transparency and fairness in our processes, and I apologise if this was not reflected in your experience. Your feedback is important to us, and we will review this matter further. Thanks, - Jan The SIXT team

Very BadProduct / Service QualityFrom Google Reviews
Jun 13, 2026

Received a smoke-filled car, denied exchange, lost jacket, and overcharged.

Business reply on Google

Hello Kelsey, I’m truly sorry to hear about your recent experience with us. It’s disappointing to learn about the issues with the car's condition and the challenges you faced with our lost property process. We strive to provide quality vehicles and customer service, and it’s clear we fell short in your case. Your feedback is invaluable, and we will address these concerns to improve our services. Thanks, The SIXT team - Theresa

BadCustomer ServiceFrom Google Reviews
Jun 12, 2026

Customer overcharged, rushed, and ignored after rental car issues.

Business reply on Google

Hello Ashley, I’m truly sorry to hear about your experience and the difficulties you faced in trying to reach us. It’s concerning to learn about the issues with the rental process, the condition of the car, and the service you received. We value your feedback and are committed to improving our services. Please know that your concerns are being taken seriously, and we will work to address these issues promptly. -Baberly

Very BadBilling & ChargesFrom Google Reviews
Jun 1, 2026

Customer charged for pre-existing damage to rental car

Business reply on Google

Hello Alex, Thank you for sharing your feedback with us. I sincerely apologise for the issues you experienced with the vehicle and the subsequent concerns regarding the damage claim. We strive to maintain high standards, and it's clear we fell short during your rental. Please know that your comments are taken seriously, and we are committed to addressing these concerns to improve our service. Thanks, The SIXT team - - Jan

BadBilling & ChargesFrom Google Reviews
May 27, 2026

Charged for unrequested upgrade despite confirming total price

Business reply on Google

Hello Monya, Thank you for sharing your feedback with us. I apologise for the confusion and lack of communication you experienced during your rental process, especially regarding the upgrade and pricing transparency. We appreciate you bringing this to our attention and will work on improving our communication to ensure a better experience for our customers. We hope to have the opportunity to see you again and provide a more seamless experience. Thanks, The SIXT team - Michelle

BadWait & DelaysFrom Google Reviews
May 27, 2026

Long wait times due to understaffing and slow service.

Business reply on Google

Hello Xane, Thank you for sharing your feedback with us. I'm sorry to hear about your experience with long lines and limited staff at Dollar, as well as the issues with their online system. We strive to provide a more efficient and seamless experience at SIXT Car Rental - Denver International Airport (DEN). We hope to have the opportunity to see you in the future and offer you a better experience. Thanks, The SIXT team -Dave

Very BadBilling & ChargesFrom Google Reviews
May 27, 2026

Sixt added predatory administrative fees for parking fines.

Business reply on Google

Hello Andrew, Thank you for sharing your experience with us. I apologise for the inconvenience you faced with the fees and the customer service issues. It's concerning to hear about the interaction you witnessed at our location, and I assure you that we strive to provide a respectful and helpful service. Your feedback is invaluable, and we will use it to improve our processes. Thanks, The SIXT team -Dave

Very BadBilling & ChargesFrom Google Reviews
May 26, 2026

Charged almost $600 more than initial reservation for a car upgrade

Business reply on Google

Hello Éric, I’m sorry to hear about your experience with the vehicle upgrade and the unexpected charges. We strive to ensure transparency and clarity in all our transactions, and it seems we fell short in this instance. Your feedback is invaluable, and we will look into this matter to prevent it from happening again. Thank you for bringing this to our attention. Thanks, SIXT Car Rental - Denver International Airport (DEN) - Theresa

BadBilling & ChargesFrom Google Reviews
May 21, 2026

Charged for gas despite returning full; car had stains.

Business reply on Google

Hello Parker, Thank you for sharing your feedback with us. I apologise for the inconvenience you experienced with the vehicle condition, the unexpected upgrade, and the drop-off process. I'm also sorry to hear about the issue with the fuel charge and the difficulty you faced in reaching our call centre. We appreciate your patience and will work to improve our services for a better experience in the future. -Baberly

BadBilling & ChargesFrom Google Reviews
May 19, 2026

Final invoice was $300 higher than agreed upon

Business reply on Google

Hello Mike, Thank you for your feedback and for highlighting the friendliness of our staff. I apologise for the issues you faced with the final invoicing and the subsequent customer service experience. It's concerning to hear about the discrepancy in your rental agreement and the delay in resolving it. We are committed to addressing this matter and ensuring a satisfactory resolution for you. Thanks, The SIXT team - Theresa

BadCustomer ServiceFrom Google Reviews
May 15, 2026

Staff ignored vehicle request and forced unwanted upgrade.

Business reply on Google

Hello Ben, Thank you for sharing your feedback with us. I apologise for the inconvenience you experienced with the vehicle selection process and for not feeling heard during your visit. It's important to us that our customers' preferences are respected, and we'll address this with our team to ensure better communication in the future. We're glad to hear you found our office clean and our staff kind, and we hope to provide a more satisfactory experience next time. Thanks, The SIXT team - Jan

Very BadProduct / Service QualityFrom Google Reviews
Apr 2, 2026

Rental car had bald tires and needed an oil change.

Business reply on Google

Hello Paige, Thank you for sharing your experience with us. I sincerely apologise for the issues you encountered with the vehicle's tyres and oil, and for any inconvenience this caused during your vacation. Your feedback is important, and I assure you that we are taking steps to address these concerns to ensure the safety and satisfaction of our customers. We appreciate your feedback and will use it to improve our services. Thanks, The SIXT team - Jan

BadBilling & ChargesFrom Google Reviews
Mar 17, 2026

Customer was charged for unwanted insurance coverage despite declining it.

Business reply on Google

Hello Carson, we're sorry to hear about your experience with the Loss Damage Waiver at our Denver International Airport location. We apologise for any confusion and inconvenience this has caused. Your feedback is important to us, and we will ensure that our team is reminded of the importance of clear communication at the counter. We hope to have the opportunity to restore your trust in the future. Thanks, The SIXT team -Jean

Very BadBilling & ChargesFrom Google Reviews
Mar 12, 2026

Unexpected charges for insurance and upgrade after declining them

Business reply on Google

Hello Hoa, Thank you for sharing your experience with us. I apologise for the poor communication during your pickup and the unexpected charges you encountered. We strive for transparency and clarity, and it's concerning to hear that this was not your experience. Your feedback is invaluable, and we will address these issues to improve our service. Thanks, The SIXT team -Michelle

Very BadMisleading & FraudFrom Google Reviews
Feb 9, 2026

Car rental company tried to charge for pre-existing damages

Business reply on Google

Hello somelike ithot, Thank you for your wonderful feedback and for choosing SIXT! We're thrilled to hear that you've consistently had a better experience with us and appreciate your kind words about our vehicles. It's always our aim to provide you with the best possible service. We look forward to seeing you again soon. Thanks, The SIXT team - Baberly

Very BadBilling & ChargesFrom Google Reviews
Oct 24, 2025

Charged undisclosed extra fees for car rental.