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

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There are 7 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 Seattle-Tacoma International Airport to Denver, bus

    best
    1. Fly from Seattle-Tacoma International Airport (SEA) to Denver (DEN)planeSEA - DEN
    2. Take the bus from Denver Airport Station Gate 9 to Arapahoe at Village Center Station Gate Abus
    6h 14m
    $143–581

  2. Fly Seattle-Tacoma International Airport to Colorado Springs Airport, bus

    cheapest
    1. Fly from Seattle-Tacoma International Airport (SEA) to Colorado Springs Airport (COS)planeSEA - COS
    2. Take the bus from Colorado Springs Downtown Station to Sky Ridge Stationbus
    10h 14m
    $138–482

  3. Bus

    1. Take the bus from Seattle Bus Station to Sacramento Bus Stationbus
    2. Take the bus from Sacramento Bus Station to Sparks Transit Centerbus
    3. Take the bus from Sparks Transit Center to Denver Union Stationbus
    43h 38m
    $215–474

  4. Bus, train

    1. Take the bus from Seattle to Sacramento Bus StationbusFlixBus N2111
    2. Take the train from Sacramento to DenvertrainCalifornia Zephyr
    2d 5h
    $254–1,529

  5. Drive 1,313.4 mi

    1. Drive from Seattle to Castle Rockcar1,313.4 mi
    21h 8m
    $240–347

  6. Fly Paine Field County Airport to Denver, bus

    1. Fly from Paine Field County Airport (PAE) to Denver (DEN)planePAE - DEN
    2. Take the bus from Denver Airport Station Gate 9 to Arapahoe at Village Center Station Gate Abus
    7h 34m
    $171–664

  7. Train (Amtrak)

    1. Take the train from Seattle to SacramentotrainCoast Starlight
    2. Take the train from Sacramento to DenvertrainCalifornia Zephyr
    2d 6h
    $271–1,813

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

Calendar124Weekly Planes
Duration2h 42mAverage Duration
Ticket$97Cheapest Price
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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 6h.

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