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How to get fromSeaTac to Boulderby plane, bus, bus (Flixbus, Greyhound) or car

Find Transport to Boulder

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There are 4 ways to get from SeaTac to Boulder by plane, bus, bus (Flixbus, Greyhound), or car

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, bus

    best
    1. Fly from Seattle-Tacoma International Airport (SEA) to Denver (DEN)planeSEA - DEN
    2. Take the bus from Denver Airport Station Gate 8 to Downtown Boulder Stationbus
    4h 7m
    $117–550

  2. Bus

    1. Take the bus from Seattle Tacoma Intl Airport to Spokane Stationbus
    2. Take the bus from Spokane to Billingsbus
    3. Take the bus from Billings, MT to Cheyenne, WYbus
    4. Take the bus from Cheyenne to Denver Union Stationbus
    5. Take the bus from Union Station Gate B17 to Broadway & Euclid AvebusFf1 / ...
    31h 14m
    $245–479

  3. Drive 1,267.1 mi

    1. Drive from SeaTac to Bouldercar1,267.1 mi
    20h 46m
    $232–334

  4. Bus via Sacramento

    1. Take the bus from Seattle Tacoma Intl Airport 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
    4. Take the bus from Union Station Gate B17 to Downtown Boulder StationbusFf1 / ...
    42h 58m
    $184–423

SeaTac to Boulder by bus

Calendar1Weekly Buses
Duration31h 14mAverage Duration
Ticket$245Cheapest Price
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Questions & Answers

What companies run services between SeaTac, WA, USA and Boulder, CO, USA?

You can take a bus from Seattle Tacoma Intl Airport to Broadway & Euclid Ave via Spokane, Billings, Billings, MT, Cheyenne, Denver Union Station, and Union Station Gate B17 in around 31h 14m.

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