The average bus between Boulder and Keystone takes 6h 18m and the fastest bus takes 3h 9m. The bus service runs several times per day from Boulder to Keystone. 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 twice daily between Boulder and Keystone. The earliest departure is at 5:00 AM in the morning, and the last departure from Boulder is at 11:29 PM which arrives into Keystone at 8:24 AM. All services require a transfer at Union Station and take an average of 6h 18m. The schedules shown below are for the next available departures.


3h 39m • 2 changes

3h 37m • 2 changesArrives next day


12h 55m • 2 changesArrives next day


8h 55m • 2 changes

3h 39m • 2 changes

3h 37m • 2 changesArrives next day


12h 55m • 2 changes

3h 24m • 2 changes

3h 24m • 2 changes

3h 9m • 2 changes

3h 24m • 2 changesWant to know about travelling from Boulder to Keystone? 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 Boulder to Keystone. However, there are services departing from Boulder station and arriving at Keystone station via Union Station station. The journey, including transfers, takes approximately 6h 18m.
Boulder to Keystone bus services, operated by Regional Transportation District, depart from Downtown Boulder Station Gate 1.
Boulder to Keystone bus services, operated by Regional Transportation District, arrive at Frisco Transit Center station.
The distance between Boulder and Keystone is 75 km. The road distance is 178 km.
You can take a bus from Downtown Boulder Station Gate 1 to Keystone Lodge via Union Station, Union Station Gate B19, Frisco Transit Center, and Frisco Transfer Center in around 4h 31m.