The Denver International Airport is a focus hub for three major airlines: United/United Express, Southwest and Frontier Airlines and is approximately 45 minutes away from Boulder. For more information visit: Fly Denver

Public Bus System, Airport to Boulder: Use Regional Transport Denver (RTD) Skyride “AB” Route or (Airport to Boulder). AB Bus Map The pickup location is on the outer platform of level 5 (same level as baggage pickup). Door 511 is the most direct to the bus pickup location. (Look for RTD signs, bus stop location contains lit sign with upcoming route/departure times). There is a RTD information desk in the main concourse. Take route to the end of the line or Boulder Transit Center (main station in Boulder in the historical district) which is approximately 1.5 miles from the Millennium Hotel. The costs is $13 one way (exact change required), hourly departure, ride time is approximately 70 minutes. The Millennium Hotel offers rides for $3 between the hotel and the Boulder bus station. You may also elect to take the RTD local bus route: "Jump" at a cost of $2.25.

Public Bus System, Denver to Boulder: Use Regional Transport Denver (RTD) RTD Bus This system connects the Denver Metro area with regular express lines to Boulder

Supershuttle: Airport Super Shuttle, call in advance for a reservation. Will deliver you directly to the Millennium Hotel from the airport for usually $27 per person each way, ride time is approximately 45 minutes.