The average bus between Aspen and Boulder takes 6h 36m and the fastest bus takes 6h 7m. There is a bus service every few hours from Aspen to Boulder. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Buses run hourly between Aspen and Boulder. The earliest departure is at 2:16 AM at night, and the last departure from Aspen is at 5:36 PM which arrives into Boulder at 12:09 AM. All services require a transfer at West Glenwood Park & Ride and take an average of 6h 36m. The schedules shown below are for the next available departures.


7h 57m • 2 changes


6h 24m • 2 changes


6h 22m • 2 changes


6h 18m • 2 changes


7h 57m • 2 changes


6h 24m • 2 changes


6h 22m • 2 changes


6h 18m • 2 changes


7h 57m • 2 changes


6h 24m • 2 changes


6h 22m • 2 changes


6h 18m • 2 changes


7h 57m • 2 changes


6h 24m • 2 changes


6h 22m • 2 changes


6h 18m • 2 changes
Want to know about travelling from Aspen to Boulder? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.
No, there is no direct bus from Aspen to Boulder. However, there are services departing from Aspen station and arriving at Boulder station via West Glenwood Park & Ride. The journey, including transfers, takes approximately 6h 36m.
Aspen to Boulder bus services, operated by RFTA, depart from Paepcke Park station.
Aspen to Boulder bus services, operated by RFTA, arrive at Broadway & Euclid Ave station.
The distance between Aspen and Boulder is 161.5 km. The road distance is 378 km.
You can take a bus from Paepcke Park to Broadway & Euclid Ave via West Glenwood Park & Ride, Union Station, and Union Station Gate B18 in around 7h 7m.