There are 4 ways to get from Boulder to Castle Rock by bus, tram, or car
Select an option below to see step-by-step directions and to compare ticket prices and travel times in Rome2Rio's travel planner.
Bus, tram
best- Take the bus from Broadway & 20th St to Union Stationbus Ff1 / ...
- Take the tram from Union Station Light Rail Plaza to Ridgegate Parkway Stationtram E
2h 7m$46–56Drive 55.1 mi
cheapest- Drive from Boulder to Castle Rockcar 55.1 mi
1h 4m$10–15Bus, tram via Denver
- Take the bus from Broadway & 20th St to Union Stationbus Ff1 / ...
- Take the tram from Union Station Light Rail Plaza to Ridgegate Parkway Stationtram E
2h 8m$46–56Bus
- Take the bus from Downtown Boulder Station Gate 1 to Union Stationbus Ff1 / ...
- Take the bus from Union Station Gate B4 to Sky Ridge Stationbus South
3h 4m$46–59
Questions & Answers
The cheapest way to get from Boulder to Castle Rock is to drive which costs $10 - $15 and takes 1h 4m.
The fastest way to get from Boulder to Castle Rock is to drive which takes 1h 4m and costs $10 - $15.
The distance between Boulder and Castle Rock is 60 miles. The road distance is 55.4 miles.
The best way to get from Boulder to Castle Rock without a car is to bus and tram which takes 2h 7m and costs $45 - $60.
It takes approximately 2h 7m to get from Boulder to Castle Rock, including transfers.
Yes, the driving distance between Boulder to Castle Rock is 55 miles. It takes approximately 1h 4m to drive from Boulder to Castle Rock.
There are 74+ hotels available in Castle Rock.
What companies run services between Boulder, CO, USA and Castle Rock, CO, USA?
You can take a bus from Downtown Boulder Station Gate 1 to Castle Rock via Union Station, Union Station Gate B4, and Sky Ridge Station in around 3h 4m.
- Phone
- +1 303-299-6000
- Website
- rtd-denver.com
Tram from Union Station Light Rail Plaza to Ridgegate Parkway Station
- Ave. Duration
- 54 min
- Frequency
- Every 20 minutes
- Estimated price
- $3
- Website
- https://www.rtd-denver.com/
- Adult
- $3
- Phone
- +1 303-299-6000
- Website
- rtd-denver.com
Bus from Broadway & 20th St to Union Station
- Ave. Duration
- 48 min
- Frequency
- Every 30 minutes
- Estimated price
- $3
- Website
- https://www.rtd-denver.com/
- Adult
- $3
Bus from Downtown Boulder Station Gate 1 to Union Station
- Ave. Duration
- 51 min
- Frequency
- Hourly
- Estimated price
- $3
- Website
- https://www.rtd-denver.com/
- Adult
- $3
- Phone
- +1 800-900-3011
- Website
- ridebustang.com
Bus from Union Station Gate B4 to Sky Ridge Station
- Ave. Duration
- 1h
- Frequency
- Every 3 hours
- Estimated price
- $3–6
- Website
- https://ridebustang.com
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