There are 3 ways to get from Boulder to Keystone by bus, plane, taxi, 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, fly, taxi
best- Take the bus from US 36 & Flatiron Station Gate A to Denver Airport Station Gate 6bus
- Fly from Denver (DEN) to Rapid City (RAP)plane DEN - RAP
- Take the taxi from Rapid-City-Airport-RAP to Keystonetaxi
4h 23m$141–446Drive 365.2 mi
cheapest- Drive from Boulder to Keystonecar 365.2 mi
6h 42m$67–97Bus, taxi
- Take the bus from Broadway & 20th St to Union Station Gate B17bus Ff1 / ...
- Take the bus from Denver Union Station to Buffalo, WYbus
- Take the taxi from Buffalo, WY to Gillettetaxi
- Take the bus from Gillette to Rapid Citybus
14h 28m$217–335
Denver (DEN) to Rapid City (RAP) flights
Questions & Answers
The cheapest way to get from Boulder to Keystone is to drive which costs $65 - $100 and takes 6h 42m.
The fastest way to get from Boulder to Keystone is to bus and fly and taxi which takes 4h 23m and costs $140 - $450.
The distance between Boulder and Keystone is 377 miles. The road distance is 367.3 miles.
The best way to get from Boulder to Keystone without a car is to bus and taxi which takes 14h 28m and costs $210 - $340.
It takes approximately 4h 23m to get from Boulder to Keystone, including transfers.
Yes, the driving distance between Boulder to Keystone is 367 miles. It takes approximately 6h 42m to drive from Boulder to Keystone.
There are 252+ hotels available in Keystone.
What companies run services between Boulder, CO, USA and Keystone, SD, USA?
There is no direct connection from Boulder to Keystone. However, you can take the bus to US 36 & Flatiron Station Gate D, walk to US 36 & Flatiron Station Gate A, take the bus to Denver Airport Station Gate 6, walk to Denver (DEN) airport, fly to Rapid City (RAP), then take the taxi to Keystone. Alternatively, you can take the bus to Union Station Gate B17, walk to Denver Union Station, take the bus to Buffalo, WY, take the taxi to Gillette, take the bus to Rapid City, then take the taxi to Keystone.
- Website
- united.com
Flights from Denver to Rapid City
- Ave. Duration
- 1h 22m
- When
- Every day
- Estimated price
- $45–330
- Phone
- +1 303-299-6000
- Website
- rtd-denver.com
Bus from US 36 & Flatiron Station Gate A to Denver Airport Station Gate 6
- Ave. Duration
- 40 min
- Frequency
- Hourly
- Estimated price
- $3
- Website
- https://www.rtd-denver.com/
- Adult
- $3
Bus from Broadway & 20th St to Union Station Gate B17
- Ave. Duration
- 45 min
- Frequency
- Hourly
- Estimated price
- $3
- Website
- https://www.rtd-denver.com/
- Adult
- $3
- Phone
- +1-877-779-2999
- tony@expressarrow.com
- Website
- expressarrow.com
Bus from Denver Union Station to Buffalo, WY
- Ave. Duration
- 8h
- Frequency
- 4 times a week
- Estimated price
- $110–140
- Website
- https://expressarrow.com
- Phone
- +1-858-800-8898
- Website
- jeffersonlines.com
Bus from Gillette to Rapid City
- Ave. Duration
- 2h 15m
- Frequency
- Once daily
- Estimated price
- $13–75
- Book at
- https://www.jeffersonlines.com
- Ave. Duration
- 48 min
- Estimated price
- $26–110
Tim's Taxi Service
- Phone
- +1 605-389-7023
Rapid Taxi
- Phone
- +1 605-348-8080
- Website
- rapidtaxirc.com
City Cab
- Phone
- +1 605-863-1111
- Website
- rapidcitytaxicab.com
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