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

Thornton to Castle Rock - Bus Schedule

The 120X bus from Thornton to Castle Rock runs from 5:12 AM to 10:59 PM, with departures every 15 min-1 hr. The trip takes about 1 hr 49 min, with regular service throughout the operating hours.

From Thornton to Castle Rock by bus and train

To get from Thornton to Castle Rock in Denver - Boulder, CO, you’ll need to take 2 bus lines and one train line: take the 120X bus from Thornton Pnr Gate C 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 1 hr 49 min. The ride fare is $40.50. The bus and train schedule from Thornton may change. We recommend you check the updated bus and train schedule to Castle Rock on the Moovit app.

109min$40.50
Walk to bus station
Bus - 120X120X
Train - A
Bus - GROOME TRANSPORTATIONGROOME TRANSPORTATION
Walk to Castle Rock
Leaves from Thornton Pnr Gate C

Step by Step

  • 1
    Walk to bus station
    Walk to bus station
    Thornton Pnr Gate C
    ID 18681
    130 yd • 2 min
  • 2
    Bus - 120X120X
    Wait for bus
    120X
    Union Station
  • 3
    Ride to bus station
    Ride to bus station
    Union Station Bus Gates
    ID 33727
    10 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
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Public transit directions from Thornton to Castle Rock

The distance between Thornton, Denver - Boulder, CO and Castle Rock, Denver - Boulder, CO is approximately 74.93 mi, which can typically be travelled in 109 min. Moovit will show you the directions from Thornton 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 Thornton to Castle Rock

To check the bus and train schedule from Thornton to Castle Rock using the Moovit app, first download and open the app on your smartphone. Enter your starting point (Thornton) 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

Questions & Answers

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

    The fastest way takes 109 minutes, using Bus line 120X, Train line A, Bus line GROOME TRANSPORTATION.

  • Is there a direct bus between Thornton 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 1 hr 49 min.

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

    The 120X bus line goes from Thornton Pnr Gate C station near Thornton to Union Station Bus Gates station. From there you’ll have to take one bus line and one train line till Union Station Bus Gates station near Castle Rock in Denver - Boulder, CO.

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

    The total travel time between Thornton and Castle Rock in Denver - Boulder, CO by bus and train is about 1 hr 49 min.

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

    Get on the 120X bus from the Thornton Pnr Gate C stop near Thornton in Denver - Boulder, CO.

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

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

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

    The ride from Thornton to Castle Rock costs $40.50.

Popular Routes