SIXT Rent a Car - Denver International Airport (DEN)

Reviews

• JV

  Justine Vild

  1 day ago
  4.0
  I did not get the SUV I reserved, instead I got "upgraded" to a car (albeit a BMW) because it was available to take now and my reserved SUV was not available yet. We were traveling to the mountains to ski but there was not a ton of snow so I figured it would be fine in a car. The guy assured me this BMW Series 2 had AWD but whether it dis or not, I can't say. I waited in line for a bit, it was very busy, but not busy enough I thought to record my wait time. They of course asked if I wanted all the rental insurances, etc but moved on after I politely declined. I tried in vain to get the Android Auto to display my map despite having my BNW profile loaded. Finally pulled out of the parking lot 1.25 hours after my scheduled flight arrival time. Can probably take 15 minutes off for checking the car (which was dirty on the outside so hard to identify any damage) and messing with trying to get the Google maps on the screen. Checkout was quick (3 minutes). Arrived at 7.27am as an airport shuttle was leaving so caught the next one which left at 7.35 and arrived at the terminal at 7.43am. Overall a good experience but I'm used to renting with National where you skip the counter, choose your car, and go. Sixt is, however, my rental company of choice when I travel to Europe.
• KK

  Kayla Kinsley

  Jan 3, 2026
  1.0
  Zero stars if I could. Our reservation was mistakenly made for another Sixt location in the same city (Denver) — our mistake, absolutely. However, both the airport Sixt location and Sixt central reservations refused to either cancel and reissue a new reservation, or transfer the existing one. We stood outside on the phone for 30+ minutes trying to sort it out. Eventually we paid $55 for an uber to take us to the other location. Horrible customer service all around.
• MM

  mddent1

  Jan 2, 2026
  2.0
  The first car I was given smelled like smoke. They made a good effort to resolve this issue with a discount but the smell, and a service warning lead me to try to replace the vehicle. First I went to the downtown location that was closer to me to try to exchange the vehicle but the manager said they couldn’t “afford” to make the exchange for me so I drove 40 minutes back to this location. Fatima offered a replacement that was very nice but the way she talked about it being an option was not clear. I asked a couple questions to try to understand and either we misunderstood each other or I was given false information leading me to believe the new car was not going to be much more of a cost and definitely not more than twice the cost of my original reservation, which it ended up being. I have not come back to the office to try to resolve this issue with Isaiah at the counter. He said that he was not a part of the conversation and the most he can do is send it to be reviewed. I hope they help me. At this point it seems the way they talk about upgrades takes advantage of the customer and uses miscommunication as an excuse to sell upgrades. Despite all this, Luis at the return area was great. Kinda patient and clear. 👍
• RY

  Robert Young

  Dec 30, 2025
  5.0
  Checking in to get my vehicle was a such a good experience. Jonathan (Jon) greeted us with a smile and was very pleasant. We had a slight issue getting the vehicle we really wanted (4x4) b/c our flight was delayed, but he did a great job in explaining how vehicle renting works at Sixt considering me being a new customer. I typically go Avis. Long story long, he seamlessly got us on the road and we were satisfied especially after several hours on delay In the airport and a long flight. Thanks Jon!
• MD

  Matt Daniels

  Dec 24, 2025
  1.0
  If I could give them no stars I would. We upgraded to a larger suv that had issue's the day after getting the car. It would go into reduced acceleration and then it overheated. The check engine light came on. When I called they said to shut it off and that the check engine light was to tell them it was time to change the oil. Complete lie. We even had pictures of the warnings that came up on the dash. They said they would credit us for the upgrade. When we dropped the car off we had just topped off the fuel at a gas station right next to Sixt. It was a little over a gallon but we wanted to make sure it was full. The attendant marked 8/8 for a full tank. My initial invoice reflected that but then I got a second invoice that showed 7/8 for the fuel and they charged me $35. They said a free upgrade was on them next time. I could care less about that after seeing that fuel charge. I will NEVER rent from Sixt again.

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