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How to get fromCastle Rock to SeaTacby train (Amtrak), bus (Greyhound, Flixbus), car, train, plane, or bus

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

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

  1. Train (Amtrak)

    best
    1. Take the train from Kelso-Longview to Seattletrain train Amtrak Cascades / ...
    3h 24m
    $83–135

  2. Bus, line 600 bus

    cheapest
    1. Take the bus from Castle Rock Park and Ride to Mellen Street e-Transit Station - 1401 Mellen St.bus bus
    2. Take the bus from Mellen Street e-Transit Station - 1401 Mellen St. to Olympia Transit Center - 280 Washington St NEbus bus
    3. Take the bus from Olympia Transit Center - Bay M to SR512 Park & Ride - Zone Gbus bus 600 / ...
    4. Take the bus from SR 512 P&R - Zone F to SeaTac Stationbus bus 574
    4h 45m
    $8–10

  3. Bus

    1. Take the bus from Castle Rock Park and Ride to Mellen Street e-Transit Station - 1401 Mellen St.bus bus
    2. Take the bus from Mellen Street e-Transit Station - 1401 Mellen St. to Olympia Transit Center - 280 Washington St NEbus bus
    3. Take the bus from Olympia to Seattle Tacoma Intl Airportbus bus
    4h 31m
    $11–18

  4. Drive 104.6 mi

    1. Drive from Castle Rock to SeaTaccar car 104.6 mi
    1h 53m
    $20–28

  5. Train, fly

    1. Take the train from Kelso-Longview to Portlandtrain train
    2. Fly from Portland International Airport (PDX) to Seattle-Tacoma International Airport (SEA)plane plane PDX - SEA
    4h 8m
    $188–405

  6. Bus, train, line 574 bus

    1. Take the bus from Castle Rock Park and Ride to Mellen Street e-Transit Station - 1401 Mellen St.bus bus
    2. Take the train from Centralia Amtrak Station to Tacomatrain train
    3. Take the bus from D St E & 25th St E to SeaTac Stationbus bus 574
    4h 37m
    $22–42

Castle Rock to SeaTac by bus

Calendar14Weekly Buses
Duration4h 31mAverage Duration
Ticket$11Cheapest Price
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Questions & Answers

Map of how to get from Castle Rock to SeaTac.ExpandLaunch map view
  • Distance: 153.3 mi
  • Duration: 3h 24m

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

Amtrak operates a train from Kelso-Longview to Seattle every 4 hours. Tickets cost $40–85 and the journey takes 2h 32m. Alternatively, you can take a bus from Castle Rock Park and Ride to Seattle Tacoma Intl Airport via Mellen Street e-Transit Station - 1401 Mellen St., Olympia Transit Center - 280 Washington St NE, and Olympia in around 4h 31m.

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