There are 3 ways to get from Castle Rock to Boulder by tram, bus, 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.
Tram, bus
best- Take the tram from Ridgegate Parkway Station to Union Station Light Rail Plazatram E
- Take the bus from Union Station Gate B17 to Broadway & Regent Drbus Ff1
2h 2mDrive 55.4 mi
cheapest- Drive from Castle Rock to Bouldercar 55.4 mi
1h 5m$11–15Bus
- Take the bus from Sky Ridge Station to Union Stationbus South
- Take the bus from Union Station Gate B17 to Broadway & Euclid Avebus Ff1
2h 8m
Comparing Your Travel Options
The cheapest way to get from Castle Rock to Boulder is to drive which costs $10 - $15 and takes 1h 5m.
The fastest way to get from Castle Rock to Boulder is to drive which takes 1h 5m and costs $10 - $15.
No, there is no direct bus from Castle Rock station to Boulder. However, there are services departing from Sky Ridge Station and arriving at Broadway & Euclid Ave via Union Station Gate B17. The journey, including transfers, takes approximately 2h 8m.
The distance between Castle Rock and Boulder is 58 miles. The road distance is 55.7 miles.
The best way to get from Castle Rock to Boulder without a car is to tram and bus which takes 2h 2m and costs .
It takes approximately 2h 2m to get from Castle Rock to Boulder, including transfers.
Castle Rock to Boulder bus services, operated by Bustang, depart from Sky Ridge Station.
Castle Rock to Boulder bus services, operated by Bustang, arrive at Union Station.
Yes, the driving distance between Castle Rock to Boulder is 56 miles. It takes approximately 1h 5m to drive from Castle Rock to Boulder.
There are 155+ hotels available in Boulder.
What companies run services between Castle Rock, CO, USA and Boulder, CO, USA?
You can take a vehicle from Castle Rock to Broadway & Euclid Ave via Sky Ridge Station, Union Station, and Union Station Gate B17 in around 2h 8m.
- Phone
- +44 1743 612002
- info@regionaltransport.co.uk
- Website
- Regional Transport
Tram from Ridgegate Parkway Station to Union Station Light Rail Plaza
- Ave. Duration
- 51 min
- Frequency
- Every 20 minutes
- Website
- Regional Transport
- Phone
- +44 1743 612002
- info@regionaltransport.co.uk
- Website
- Regional Transport
Bus from Union Station Gate B17 to Broadway & Regent Dr
- Ave. Duration
- 45 min
- Frequency
- Every 30 minutes
- Website
- Regional Transport
Bus from Union Station Gate B17 to Broadway & Euclid Ave
- Ave. Duration
- 47 min
- Frequency
- Every 30 minutes
- Website
- Regional Transport
- Phone
- +1 800-900-3011
- Website
- Bustang
Bus from Sky Ridge Station to Union Station
- Ave. Duration
- 55 min
- Frequency
- Every 3 hours
- Estimated price
- $5–7
- Website
- Bustang
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Rome2Rio's Travel Guide series provide vital information for the global traveller. Read our range of informative guides on popular transport routes and companies - including How to get from Gatwick Airport into central London, Travel Insider: Top Japan travel tips by Beatrix Holland, and Travelling to the US: What do I need to know? - to help you get the most out of your next trip.