Denver International Airport (DIA) is the closest and is about 1hr and 30 min away.
Depends... DIA does have a shuttle service from the airport to Estes Park. More information on the shuttle times and prices can be found at www.estesparkshuttle.com/DIA-airport-shuttle. ** Make sure your lodging is in the town of Estes Park if you are not planning to rent a car. Restaurants, grocery stores and shopping can all be found in town. There is very limited taxi services available, if any in the winter time. If a shuttle is not your choice of transportation here is information on rental cars from DIA. www.flydenver.com/parking_transit/car-rentals
The town of Estes Park is about 5 miles from Della Terra Mountain Chateau where the ceremony and reception will be held.
December in Estes Park could bring sunny, bluebird skies with temperatures in the 30's-40's or it could be a snowy winter wonderland with temperatures in the single digits.