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How to get fromCastle Rock to Seattle Airport (SEA)by train (Amtrak), bus (Greyhound, Flixbus), rideshare, car, train, plane, or bus

Find Transport to Seattle Airport (SEA)

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There are 7 ways to get from Castle Rock to Seattle Airport (SEA) by train (Amtrak), bus (Greyhound, Flixbus), rideshare, 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 40m
    $86–138

  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 Airport Terminal - Bay 2bus bus 574
    4h 52m
    $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. Airport Transfer

    1. Take the rideshare from Castle Rock to Seattle-SEArideshare rideshare 105.5 mi
    1h 55m

  5. Drive 105.5 mi

    1. Drive from Castle Rock to Seattle Airport (SEA)car car 105.5 mi
    1h 55m
    $20–28

  6. 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
    $197–405

  7. 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 Airport Terminal - Bay 2bus bus 574
    4h 44m
    $22–42

Castle Rock to Seattle Airport (SEA) 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 Seattle Airport (SEA).ExpandLaunch map view
  • Distance: 154.6 mi
  • Duration: 3h 40m

What companies run services between Castle Rock, WA, USA and Seattle Airport (SEA), 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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