How to get from Boulder to Castle Rock by bus and train?

From Boulder to Castle Rock by bus and train

To get from Boulder to Castle Rock in Denver - Boulder, CO, you’ll need to take 2 bus lines and one train line: take the FF2 bus from Broadway & Baseline Rd station to Union Station Bus Gates station. Next, you’ll have to switch to the A train and finally take the GROOME TRANSPORTATION bus from Denver Airport East - Door 505 Island 5 station to Days Inn Castle Rock station. The total trip duration for this route is approximately 2 hr 23 min. The ride fare is $40.50. The bus and train schedule from Boulder may change. We recommend you check the updated bus and train schedule to Castle Rock on the Moovit app.

143min$40.50
Walk to bus station
Bus - FF2FF2
Train - A
Bus - GROOME TRANSPORTATIONGROOME TRANSPORTATION
Walk to Castle Rock
Leaves from Broadway & Baseline Rd

Step by Step

  • 1
    Walk to bus station
    Walk to bus station
    Broadway & Baseline Rd
    ID 12478
    390 yd • 5 min
  • 2
    Bus - FF2FF2
    Wait for bus
    FF2
    Union Station Express
  • 3
    Ride to bus station
    Ride to bus station
    Union Station Bus Gates
    ID 33727
    34 min
  • 4
    Train - A
    Wait for train
    A
    Denver Airport
  • 5
    Ride to train station
    Ride to train station
    Denver Airport Station Bus Gates 6,7,8,9 & 10
    ID 34503
    37 min
  • 6
    Walk to bus station
    Walk to bus station
    Denver Airport East - Door 505 Island 5
    350 yd • 5 min
  • 7
    Bus - GROOME TRANSPORTATIONGROOME TRANSPORTATION
    Wait for bus
    GROOME TRANSPORTATION
    Colorado Springs
  • 8
    Ride to bus station
    Ride to bus station
    Days Inn Castle Rock
    35 min
  • 9
    Walk to Castle Rock
    Walk to
    Castle Rock
    180 yd • 3 min
*Duration based on 8am traffic

From Boulder to Castle Rock by bus

To get from Boulder to Castle Rock in Denver - Boulder, CO, you’ll need to take 3 bus lines: take the FF1 bus from Broadway & Baseline Rd station to Us 36 & Mccaslin Station Gate A station. Next, you’ll have to switch to the AB2 bus and finally take the GROOME TRANSPORTATION bus from Denver Airport East - Door 505 Island 5 station to Days Inn Castle Rock station. The total trip duration for this route is approximately 2 hr 29 min. The ride fare is $40.50. The bus and train schedule from Boulder may change. We recommend you check the updated bus and train schedule to Castle Rock on the Moovit app.

149min$40.50
Walk to bus station
Bus - FF1FF1
Bus - AB2AB2
Bus - GROOME TRANSPORTATIONGROOME TRANSPORTATION
Walk to Castle Rock
Leaves from Broadway & Baseline Rd

Step by Step

  • 1
    Walk to bus station
    Walk to bus station
    Broadway & Baseline Rd
    ID 12478
    390 yd • 5 min
  • 2
    Bus - FF1FF1
    Wait for bus
    FF1
    Union Station All-Station
  • 3
    Ride to bus station
    Ride to bus station
    Us 36 & Mccaslin Station Gate A
    ID 19775
    12 min
  • 4
    Walk to bus station
    Walk to bus station
    Us 36 & Mccaslin Station Gate B
    ID 34655
    20 yd • 1 min
  • 5
    Bus - AB2AB2
    Wait for bus
    AB2
    Denver Airport Via E-470
  • 6
    Ride to bus station
    Ride to bus station
    Denver Airport Station Bus Gates 6,7,8,9 & 10
    ID 34503
    48 min
  • 7
    Walk to bus station
    Walk to bus station
    Denver Airport East - Door 505 Island 5
    350 yd • 5 min
  • 8
    Bus - GROOME TRANSPORTATIONGROOME TRANSPORTATION
    Wait for bus
    GROOME TRANSPORTATION
    Colorado Springs
  • 9
    Ride to bus station
    Ride to bus station
    Days Inn Castle Rock
    35 min
  • 10
    Walk to Castle Rock
    Walk to
    Castle Rock
    180 yd • 3 min
*Duration based on 8am traffic
The Most Popular Urban Mobility App in Denver - Boulder, CO.
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Public transit directions from Boulder to Castle Rock

The distance between Boulder, Denver - Boulder, CO and Castle Rock, Denver - Boulder, CO is approximately 93.29 mi, which can typically be travelled in 143 min. Moovit will show you the directions from Boulder to Castle Rock by bus and train, so no matter how you choose to travel in Denver - Boulder, CO – you will always have plenty of easy options.

Bus And Train schedule from Boulder to Castle Rock

To check the bus and train schedule from Boulder to Castle Rock using the Moovit app, first download and open the app on your smartphone. Enter your starting point (Boulder) and destination (Castle Rock), then select the desired date and time of travel. Moovit will show all available bus and train routes, estimated travel times, and any required transfers. You can view detailed departure and arrival times for each bus and train, 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 and train schedules.

Related Routes

From Boulder to Castle Rock by bus

To get from Boulder to Castle Rock in Denver - Boulder, CO, you’ll need to take 3 bus lines: take the FF1 bus from Broadway & Baseline Rd station to Us 36 & Mccaslin Station Gate A station. Next, you’ll have to switch to the AB2 bus and finally take the GROOME TRANSPORTATION bus from Denver Airport East - Door 505 Island 5 station to Days Inn Castle Rock station. The total trip duration for this route is approximately 2 hr 29 min. The ride fare is $40.50. The bus and train schedule from Boulder may change. We recommend you check the updated bus and train schedule to Castle Rock on the Moovit app.

149min$40.50
Walk to bus station
Bus - FF1FF1
Bus - AB2AB2
Bus - GROOME TRANSPORTATIONGROOME TRANSPORTATION
Walk to Castle Rock
Leaves from Broadway & Baseline Rd

Step by Step

  • 1
    Walk to bus station
    Walk to bus station
    Broadway & Baseline Rd
    ID 12478
    390 yd • 5 min
  • 2
    Bus - FF1FF1
    Wait for bus
    FF1
    Union Station All-Station
  • 3
    Ride to bus station
    Ride to bus station
    Us 36 & Mccaslin Station Gate A
    ID 19775
    12 min
  • 4
    Walk to bus station
    Walk to bus station
    Us 36 & Mccaslin Station Gate B
    ID 34655
    20 yd • 1 min
  • 5
    Bus - AB2AB2
    Wait for bus
    AB2
    Denver Airport Via E-470
  • 6
    Ride to bus station
    Ride to bus station
    Denver Airport Station Bus Gates 6,7,8,9 & 10
    ID 34503
    48 min
  • 7
    Walk to bus station
    Walk to bus station
    Denver Airport East - Door 505 Island 5
    350 yd • 5 min
  • 8
    Bus - GROOME TRANSPORTATIONGROOME TRANSPORTATION
    Wait for bus
    GROOME TRANSPORTATION
    Colorado Springs
  • 9
    Ride to bus station
    Ride to bus station
    Days Inn Castle Rock
    35 min
  • 10
    Walk to Castle Rock
    Walk to
    Castle Rock
    180 yd • 3 min
*Duration based on 8am traffic

Questions & Answers

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

    The fastest way takes 143 minutes, using Bus line FF2, Train line A, Bus line GROOME TRANSPORTATION.

  • What is the alternative route to get from Boulder to Castle Rock?

    The alternative route takes 149 minutes, using Bus line FF1, Bus line AB2, Bus line GROOME TRANSPORTATION.

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

    No, you’ll have to take 2 bus lines and one train line in total. The total travelling time is 2 hr 23 min.

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

    The FF2 bus line goes from Broadway & Baseline Rd station near Boulder to Union Station Express station. From there you’ll have to take one bus line and one train line till Union Station Express station near Castle Rock in Denver - Boulder, CO.

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

    The total travel time between Boulder and Castle Rock in Denver - Boulder, CO by bus and train is about 2 hr 23 min.

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

    Get on the FF2 bus from the Broadway & Baseline Rd stop near Boulder in Denver - Boulder, CO.

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

    Get off the bus at the Union Station Express stop, which is closest to Castle Rock in Denver - Boulder, CO.

  • How much is the total bus and train fare from Boulder to Castle Rock?

    The ride from Boulder to Castle Rock costs $40.50.

Popular Routes