DIA (Denver International Airport) is the main commerical airport serving the Rocky Region.
Via the Peak to Peak Scenic Byway, It is a 3 hour drive from Estes Park. Rent a car to drive yourself, or pay to take an Airport Shuttle Bus to your lodging.
Once in Estes Park, free Visitor Shuttles are available during summer around Estes Park, and into Rocky Mountain National Park. Paid taxi services are also available.
Fort Collins/Loveland Municipal Airport 970-962-2850
Boulder Municipal Airport 303-441-3108
Kremmling Airport 970-724-0611
Granby Airport 970-725-3347
The Peak to Peak Scenic Byway is the only route currently open for driving to Rocky Mountain National Park due to September 2013 flooding. Driving to Rocky Mountain National Park from the East side (Denver/Boulder/Loveland/Fort Collins area), you will head north from Interstate 70 at Exit 243 and follow Hwys 119/72/7 to arrive at Estes Park, Colorado.
Big Thompson Canyon (CO Highway 34) was washed out by flooding and will take some time to rebuild. The canyon is spectacular - you sometimes spot Rocky Mountain Sheep on the steep canyon walls as you follow the river's steep descent from the high mountains.
Approaching from the West side or I70 to the south via Highway 40, you will arrive at Grand Lake, Colorado by turning north on Highway 34.
The Peak to Peak Highway (119 to 72 to 7) runs north-south from Estes Park to I70 and is a favorite scenic drive - especially during fall colors.
Trail Ridge Road (Highway 34) connects the two sides of the Park, crossing the Continental Divide at 12,183 ft. It closes during fall snows, and permanently for winter when snowfall can no longer be cleared - usually in October.