How to get from Castle Rock to Boulder by bus?

From Castle Rock to Boulder by bus

To get from Castle Rock to Boulder in Denver - Boulder, CO, take the GROOME TRANSPORTATION bus from Castle Rock station to Denver International Airport station. Next, take the AB1 bus from Denver Airport Station Bus Gates 6,7,8,9 & 10 station to 27th Way & Broadway station. The total trip duration for this route is approximately 2 hr 34 min. The bus schedule from Castle Rock may change. We recommend you check the updated bus schedule to Boulder on the Moovit app.

154min
Walk to bus station
Bus - GROOME TRANSPORTATIONGROOME TRANSPORTATION
Bus - AB1AB1
Leaves from Castle Rock

Step by Step

  • 1
    Walk to bus station
    Walk to bus station
    Castle Rock
    180 yd • 3 min
  • 2
    Bus - GROOME TRANSPORTATIONGROOME TRANSPORTATION
    Wait for bus
    GROOME TRANSPORTATION
    Denver International Airport
  • 3
    Ride to bus station
    Ride to bus station
    Denver International Airport
    50 min
  • 4
    Walk to bus station
    Walk to bus station
    Denver Airport Station Bus Gates 6,7,8,9 & 10
    ID 34503
    380 yd • 5 min
  • 5
    Bus - AB1AB1
    Wait for bus
    AB1
    Downtown Boulder Via E-470
  • 6
    Ride to bus station 27th Way & Broadway
    Ride to bus station
    27th Way & Broadway
    54 min
*Duration based on 8am traffic
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Public transit directions from Castle Rock to Boulder

The distance between Castle Rock, Denver - Boulder, CO and Boulder, Denver - Boulder, CO is approximately 86.01 mi, which can typically be travelled in 154 min. Moovit will show you the directions from Castle Rock to Boulder by bus, so no matter how you choose to travel in Denver - Boulder, CO – you will always have plenty of easy options.

Bus schedule from Castle Rock to Boulder

To check the bus schedule from Castle Rock to Boulder using the Moovit app, first download and open the app on your smartphone. Enter your starting point (Castle Rock) and destination (Boulder), then select the desired date and time of travel. Moovit will show all available bus routes, estimated travel times, and any required transfers. You can view detailed departure and arrival times for each bus, as well as real-time updates for delays or changes. Use this information to plan your trip and stay up to date with the latest bus schedules.

Related Routes

Questions & Answers

  • What is the fastest way to get from Castle Rock to Boulder?

    The fastest way takes 154 minutes, using Bus line GROOME TRANSPORTATION, Bus line AB1.

  • Is there a direct bus between Castle Rock and Boulder in Denver - Boulder, CO?

    No, you’ll have to take 2 bus lines in total. The total travelling time is 2 hr 34 min.

  • Which bus line goes from Castle Rock to Boulder in Denver - Boulder, CO?

    The GROOME TRANSPORTATION bus line goes from Castle Rock station near Castle Rock to Denver International Airport station. From there you’ll have to take one bus line till Denver International Airport station near Boulder in Denver - Boulder, CO.

  • How long does it take to travel from Castle Rock to Boulder in Denver - Boulder, CO by bus?

    The total travel time between Castle Rock and Boulder in Denver - Boulder, CO by bus is about 2 hr 34 min.

  • Where do I get on the bus near Castle Rock to get to Boulder in Denver - Boulder, CO?

    Get on the GROOME TRANSPORTATION bus from the Castle Rock stop near Castle Rock in Denver - Boulder, CO.

  • Where do I get off the bus when travelling between Castle Rock and Boulder in Denver - Boulder, CO?

    Get off the bus at the Denver International Airport stop, which is closest to Boulder in Denver - Boulder, CO.

Popular Routes