From the Airport To Boulder

The nearest major airport is Denver International Airport (DIA). From the airport, one can reach Boulder by shuttle, bus, taxi or car.

By Shuttle
For many people the simplest way to get from and to the airport will be to take the Green Ride.

By Bus
You can catch the AB1/AB2 bus to Boulder (also called the SkyRide) from the Denver International Airport at the DEN Transit Center, adjacent to the Westin Denver International Airport. The DEN Transit Center can be accessed at the south end of the Jeppesen Terminal, exit through the glass doors and take the escalator down to ground level. The bus fare on the SkyRide is $10.50. Exact change in cash is required when boarding the bus. Cash, credit, and debit cards are accepted at rail station ticket vending machines. The detailed AB1/AB2 schedule is HERE, but note that there will be a schedule change on May 19, 2019.
Most Boulder hotels, including the Millennium Harvest House, are not served by the AB1 bus, but connections can be made at the Boulder Transit Center, which is the last stop of the AB1 bus. For the Millennium Harvest House, take the bus called JUMP. The local bus fare is $3.00.
Warning: Boulder cannot be reached from the airport by train. The A Line train at the airport, which is called `University of Colorado' does not go to Boulder.

By Taxi
There is a $88.57 flat rate per cab to take passengers between Boulder and the Denver International Airport (one-way fare, airport access fee already included). No other stops may be made along the way. The flat rate applies regardless of the number of passengers that share a ride.