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.