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 15m$121–401Drive 365.2 mi
cheapest- Drive from Boulder to Keystonecar 365.2 mi
6h 42m$67–97Bus
- Take the bus from Broadway & 20th St to Union Stationbus Ff2 / ...
- Take the bus from Denver Union Station to Buffalo, WYbus
- Take the bus from Buffalo to Gillettebus
- Take the bus from Gillette to Rapid Citybus
15h 50m$229–308
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 15m and costs $120 - $410.
No, there is no direct bus from Boulder to Keystone. However, there are services departing from Broadway & 20th St and arriving at Rapid City via Denver Union Station, Buffalo and Gillette. The journey, including transfers, takes approximately 15h 50m.
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 which takes 15h 50m and costs $220 - $310.
It takes approximately 4h 15m to get from Boulder to Keystone, including transfers.
Boulder to Keystone bus services, operated by Regional Transportation District, depart from Broadway & 20th St station.
Boulder to Keystone bus services, operated by Regional Transportation District, arrive at Union Station.
Yes, the driving distance between Boulder to Keystone is 367 miles. It takes approximately 6h 42m to drive from Boulder to Keystone.
There are 310+ hotels available in Keystone.
What companies run services between Boulder, CO, USA and Keystone, SD, USA?
You can take a bus from Broadway & 20th St to Keystone via Denver Union Station, Buffalo, WY, Buffalo, Gillette, and Rapid City in around 15h 50m.
- Website
- united.com
Flights from Denver to Rapid City
- Ave. Duration
- 1h 21m
- When
- Every day
- Estimated price
- $45–310
- 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
- Ave. Duration
- 45 min
- Frequency
- Hourly
- Estimated price
- $3
- Website
- https://www.rtd-denver.com/
- Adult
- $3
- Phone
- +1-877-779-2999
- [email protected]
- 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 Buffalo to Gillette
- Ave. Duration
- 1h 10m
- Frequency
- Once daily
- Estimated price
- $26–40
- Book at
- https://www.jeffersonlines.com
- Adult
- $26–40
Bus from Gillette to Rapid City
- Ave. Duration
- 2h 15m
- Frequency
- Once daily
- Estimated price
- $40–60
- Book at
- https://www.jeffersonlines.com
- Adult
- $40–60
- Ave. Duration
- 36 min
- Estimated price
- $70–85
City Cab
- Phone
- +1 605-863-1111
- Website
- rapidcitytaxicab.com
Rapid Taxi
- Phone
- +1 605-348-8080
- Website
- rapidtaxirc.com
Tim's Taxi Service
- Phone
- +1 605-389-7023
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