There are a couple ways to get from Denver International Airport up to the Winter Park Area
1. Rent a car from the airport
Here is DIA's website for more information
http://flydenver.com/parkinggt
2. Take a shuttle from the airport to your lodging in the Winter Park/Fraser Area
Home James Transportation Services offers both individual and group rates. You can check out their website for more information. There is a group discount for 3 or more people.
http://ridehj.com/
