It depends on your route, but the approximate driving distance (using major roadways) is 155 miles.
154 miles
The driving distance between Denver, CO, and Aspen, CO, is 160 miles.
The driving distance is 834 miles.
around 4 hours
North Platte NE to Aspen CO is about 734 km.
Cheyenne is closer to Aspen than to Seattle. The driving distance from Cheyenne Wyoming to Aspen Colorado is 296 miles per MapQuest. The driving distance from Cheyenne Wyoming to Seattle Washington is 1238 miles per MapQuest.
680 miles.
About 210 miles.
About 200 miles using I-70W.
The driving distance from Minneapolis, MN to Aspen, CO is 1,107 miles.
About 1600 miles
About 700 miles