The best airport to fly in/out of is Denver International Airport (DEN), about a 50 minute drive from the venue. Although shuttle options or rental cars are available through the airport.
Both the ceremony and reception will at the same location - Greenbriar Inn - 8735 N Foothills Hwy. Boulder, CO 80302, which is located about 10 mins north of Boulder.
Below are a few of our favorite hotels in the area, also see the "Things to Do" tab for things nearby that are must adventures if you are staying for several days.