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How to get fromSeattle to Longmontby plane, bus, bus (Greyhound), car, or train

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There are 4 ways to get from Seattle to Longmont by plane, bus, bus (Greyhound), car, 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. Fly from Seattle-Tacoma International Airport, bus

    best
    1. Fly from Seattle-Tacoma International Airport (SEA) to Denver (DEN)plane plane SEA - DEN
    2. Take the bus from Denver Airport Station Gate 8 to Downtown Boulder Stationbus bus
    7h 8m
    $97–432

  2. Bus

    1. Take the bus from Seattle Bus Station to Denver Union Stationbus bus Greyhound US0550
    2. Take the bus from Union Station Gate B16 to Coffman St & 4th Avebus bus Lx2 / ...
    29h 25m
    $231–438

  3. Drive 1,247.9 mi

    1. Drive from Seattle to Longmontcar car 1,247.9 mi
    20h 28m
    $228–329

  4. Train to Portland International Airport, fly, bus

    1. Take the train from Seattle to Portlandtrain train
    2. Fly from Portland International Airport (PDX) to Denver (DEN)plane plane PDX - DEN
    3. Take the bus from Denver Airport Station Gate 8 to Downtown Boulder Stationbus bus
    10h 24m
    $170–667

Seattle to Longmont by bus

Calendar7Weekly Buses
Duration29h 25mAverage Duration
Ticket$231Cheapest Price
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Questions & Answers

What companies run services between Seattle, WA, USA and Longmont, CO, USA?

You can take a bus from Seattle Bus Station to Coffman St & 4th Ave via Denver Union Station and Union Station Gate B16 in around 29h 25m.

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