There are 5 ways to get from Helena to Castle Rock by plane, bus (Greyhound), 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.
Fly from Helena Regional Airport
best- Fly from Helena Regional Airport (HLN) to Denver (DEN)plane HLN - DEN
4h 5m$127–459Bus
- Take the bus from Helena, MT to Butte, MTbus
- Take the bus from Butte to Billingsbus
- Take the bus from Billings, MT to Cheyenne, WYbus
- Take the bus from Cheyenne to Denver Union Stationbus
21h 1m$302–429Drive 819.9 mi
- Drive from Helena to Castle Rockcar 819.9 mi
12h 21m$150–217Drive to Gallatin Field Airport, fly
- Drive from Helena to Bozeman-Airport-BZNcar
- Fly from Gallatin Field Airport (BZN) to Denver (DEN)plane BZN - DEN
5h 2m$303–550Drive to Missoula International Airport, fly
- Drive from Helena to Missoula-Airport-MSOcar
- Fly from Missoula International Airport (MSO) to Denver (DEN)plane MSO - DEN
5h 47m$163–587
Helena Regional Airport (HLN) to Denver (DEN) flights
Questions & Answers
The cheapest way to get from Helena to Castle Rock is to drive which costs $150 - $220 and takes 12h 21m.
The fastest way to get from Helena to Castle Rock is to fly which takes 4h 5m and costs $120 - $460.
No, there is no direct bus from Helena to Castle Rock station. However, there are services departing from Helena, MT and arriving at Denver Union Station via Butte, Billings, MT and Cheyenne. The journey, including transfers, takes approximately 21h 1m.
The distance between Helena and Castle Rock is 647 miles. The road distance is 824.7 miles.
The best way to get from Helena to Castle Rock without a car is to bus which takes 21h 1m and costs $300 - $430.
It takes approximately 4h 5m to get from Helena to Castle Rock, including transfers.
Helena to Castle Rock bus services, operated by Salt Lake Express, depart from Helena, MT station.
The best way to get from Helena to Castle Rock is to fly which takes 4h 5m and costs $120 - $460. Alternatively, you can bus, which costs $300 - $430 and takes 21h 1m.
Helena to Castle Rock bus services, operated by Salt Lake Express, arrive at Butte, MT station.
Yes, the driving distance between Helena to Castle Rock is 825 miles. It takes approximately 12h 21m to drive from Helena to Castle Rock.
What companies run services between Helena, MT, USA and Castle Rock, CO, USA?
United Airlines flies from Helena Regional Airport (HLN) to Denver (DEN) twice daily. Alternatively, you can take a bus from Helena, MT to Castle Rock via Butte, Billings, MT, Cheyenne, Denver Union Station, Union Station Light Rail Plaza, and Ridgegate Parkway Station in around 21h 1m.
- Website
- southwest.com
Flights from Gallatin Field Airport to Denver
- Ave. Duration
- 1h 42m
- When
- Every day
- Estimated price
- $55–320
- Website
- united.com
Flights from Helena Regional Airport to Denver
- Ave. Duration
- 2h 10m
- When
- Every day
- Estimated price
- $70–390
Flights from Gallatin Field Airport to Denver
- Ave. Duration
- 1h 53m
- When
- Every day
- Estimated price
- $55–320
Flights from Missoula International Airport to Denver
- Ave. Duration
- 2h 10m
- When
- Every day
- Estimated price
- $95–500
- Website
- delta.com
Flights from Missoula International Airport to Denver via Salt Lake City
- Ave. Duration
- 4h 6m
- When
- Every day
- Estimated price
- $110–550
- Website
- alaskaair.com
Flights from Missoula International Airport to Denver via Portland
- Ave. Duration
- 5h 5m
- When
- Tuesday, Wednesday, Saturday, and Sunday
- Estimated price
- $290–1,300
- Phone
- +1 208-656-8824
- [email protected]
- Website
- saltlakeexpress.com
Bus from Helena, MT to Butte, MT
- Ave. Duration
- 1h 15m
- Frequency
- Once daily
- Estimated price
- $19–55
- Website
- https://saltlakeexpress.com
- Phone
- +1-858-800-8898
- Website
- jeffersonlines.com
Bus from Butte to Billings
- Ave. Duration
- 3h 35m
- Frequency
- Twice daily
- Estimated price
- $55–85
- Book at
- https://www.jeffersonlines.com
- Adult
- $55–85
- Phone
- +1-877-779-2999
- [email protected]
- Website
- expressarrow.com
Bus from Billings, MT to Cheyenne, WY
- Ave. Duration
- 10h
- Frequency
- Once a week
- Estimated price
- $140–180
- Website
- https://expressarrow.com
Bus from Cheyenne to Denver Union Station
- Ave. Duration
- 2h 20m
- Frequency
- 4 times a week
- Estimated price
- $45–60
- Website
- https://expressarrow.com
Rome2Rio's guide to Greyhound USA
Contact DetailsContact Details
- Phone
- +1 214-849-8100
- [email protected]
- Website
- greyhound.com
Bus from Cheyenne to Denver Union Station
- Ave. Duration
- 1h 50m
- Frequency
- Once daily
- Estimated price
- $14–28
- Website
- https://www.greyhound.com/
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More Questions & Answers
There are 84+ hotels available in Castle Rock.