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

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There are 5 ways to get from SeaTac to Castle Rock by train (Amtrak), bus (Flixbus, Greyhound), car, bus, or train

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 Seattle to Kelso-Longviewtrain train Amtrak Cascades / ...
    4h 7m
    $83–138

  2. Bus, line 600 bus

    cheapest
    1. Take the bus from SeaTac Station to SR 512 P&R - Zone Hbus bus 574
    2. Take the bus from SR512 Park & Ride - Zone G to Olympia Transit Center - Bay Mbus bus 600 / ...
    3. Take the bus from Olympia Transit Center - 280 Washington St NE to Mellen Street e-Transit Station - 1401 Mellen St.bus bus
    4. Take the bus from Mellen Street e-Transit Station - 1401 Mellen St. to Castle Rock Park and Ridebus bus
    5h 34m
    $8–10

  3. Bus

    1. Take the bus from Seattle Tacoma Intl Airport to Olympiabus bus
    2. Take the bus from Olympia Transit Center - 280 Washington St NE to Mellen Street e-Transit Station - 1401 Mellen St.bus bus
    3. Take the bus from Mellen Street e-Transit Station - 1401 Mellen St. to Castle Rock Park and Ridebus bus
    4h 44m
    $12–18

  4. Drive 104.4 mi

    1. Drive from SeaTac to Castle Rockcar car 104.4 mi
    1h 53m
    $20–28

  5. Line 574 bus, train, bus

    1. Take the bus from SeaTac Station to 26th St E & D St Ebus bus 574
    2. Take the train from Tacoma to Centralia Amtrak Stationtrain train
    3. Take the bus from Mellen Street e-Transit Station - 1401 Mellen St. to Castle Rock Park and Ridebus bus
    5h 27m
    $22–42

SeaTac to Castle Rock by bus

Calendar14Weekly Buses
Duration4h 44mAverage Duration
Ticket$12Cheapest Price
See schedules

Questions & Answers

Map of how to get from SeaTac to Castle Rock.ExpandLaunch map view
  • Distance: 153.5 mi
  • Duration: 4h 7m

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

Amtrak operates a train from Seattle to Kelso-Longview every 4 hours. Tickets cost $40–85 and the journey takes 2h 20m. Alternatively, you can take a bus from Seattle Tacoma Intl Airport to Castle Rock Park and Ride via Olympia, Olympia Transit Center - 280 Washington St NE, and Mellen Street e-Transit Station - 1401 Mellen St. in around 4h 44m.

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