Rome2Rio

How to get fromSeattle to Castle Rockby plane, bus, bus (Greyhound, Flixbus), train, car or train (Amtrak)

Find Transport to Castle Rock

See all options

There are 6 ways to get from Seattle to Castle Rock by plane, bus, bus (Greyhound, Flixbus), train, car, or train (Amtrak)

Select an option below to see step-by-step directions and to compare ticket prices and travel times in Rome2Rio's travel planner.

  1. Fly to Denver, bus

    best
    1. Fly from Seattle-Tacoma International Airport (SEA) to Denver (DEN)plane plane SEA - DEN
    2. Take the bus from Denver Airport Station Gate 9 to Arapahoe at Village Center Station Gate Abus bus
    6h 20m
    $162–662

  2. Fly to Colorado Springs Airport, bus

    cheapest
    1. Fly from Seattle-Tacoma International Airport (SEA) to Colorado Springs Airport (COS)plane plane SEA - COS
    2. Take the bus from Colorado Springs Downtown Station to Sky Ridge Stationbus bus
    10h 29m
    $138–482

  3. Bus

    1. Take the bus from Seattle Bus Station to Sacramento Bus Stationbus bus
    2. Take the bus from Sacramento Bus Station to Sparks Transit Centerbus bus
    3. Take the bus from Sparks Transit Center to Denver Union Stationbus bus
    43h 38m
    $217–467

  4. Bus, train

    1. Take the bus from Seattle to Sacramento Bus Stationbus bus FlixBus N2111
    2. Take the train from Sacramento to Denvertrain train California Zephyr
    2d 4h
    $254–1,029

  5. Drive 1,313.4 mi

    1. Drive from Seattle to Castle Rockcar car 1,313.4 mi
    21h 15m
    $240–347

  6. Train (Amtrak)

    1. Take the train from Seattle to Sacramentotrain train Coast Starlight
    2. Take the train from Sacramento to Denvertrain train California Zephyr
    2d 5h
    $272–1,056

Seattle-Tacoma International Airport (SEA) to Denver (DEN) flights

Calendar94Weekly Planes
Duration2h 45mAverage Duration
Ticket$110Cheapest Price
See schedules

Questions & Answers

What companies run services between Seattle, WA, USA and Castle Rock, CO, USA?

You can take a bus from Seattle Bus Station to Castle Rock via Sacramento Bus Station, Sparks Transit Center, Denver Union Station, Union Station Gate B4, and Sky Ridge Station in around 43h 38m. Alternatively, you can take a train from Seattle to Castle Rock via Sacramento, Denver, Union Station Light Rail Plaza, and Ridgegate Parkway Station in around 2d 5h.

Airlines
Train operators
Bus operators

Want to know more about travelling around United States

Rome2Rio's Travel Guide series provide vital information for the global traveller. Filled with useful and timely travel information, the guides answer all the hard questions - such as 'How do I buy a ticket?', 'Should I book online before I travel? ', 'How much should I expect to pay?', 'Do the trains and buses have Wifi?' - to help you get the most out of your next trip.

Related travel guides

Need to know: Greyhound

Read the travel guideNeed to know: Greyhound

Trips from Seattle

Trips to Castle Rock

Popular routes