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

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There are 8 ways to get from Seattle to Longmont by plane, bus, bus (Flixbus), train, car, or bus (Greyhound, Flixbus)

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 Seattle-Tacoma International Airport to Denver, bus

    best
    1. Fly from Seattle-Tacoma International Airport (SEA) to Denver (DEN)planeSEA - DEN
    2. Take the bus from Union Station Gate B18 to Main St & 3rd Avebus
    7h 14m
    $110–538
  2. Bus

    1. Take the bus from Seattle Bus Station to Spokane Stationbus
    2. Take the bus from Spokane to Billingsbus
    3. Take the bus from Billings, MT to Casper Amtrak Stationbus
    4. Take the bus from Casper Amtrak Station to Denver Union Stationbus
    5. Take the bus from Union Station Gate B18 to Main St & 3rd AvebusLd1 / ...
    32h 47m
    $271–506
  3. Train, bus

    1. Take the train from Seattle to Sacramentotrain
    2. Take the train from Sacramento to Denvertrain
    3. Take the bus from Union Station Gate B18 to S Main St & Delaware AvebusLd1 / ...
    2d 6h
    $231–1,764
  4. Drive 1,250 mi

    1. Drive from Seattle to Longmontcar1,250 mi
    20h 16m
    $229–330
  5. Fly Paine Field County Airport to Denver, bus

    1. Fly from Paine Field County Airport (PAE) to Denver (DEN)planePAE - DEN
    2. Take the bus from Union Station Gate B18 to Main St & 3rd Avebus
    8h 33m
    $138–621
  6. Fly Seattle-Tacoma International Airport to Colorado Springs Airport, bus

    1. Fly from Seattle-Tacoma International Airport (SEA) to Colorado Springs Airport (COS)planeSEA - COS
    2. Take the bus from Colorado Springs to 8th & Coffman PnR Longmontbus
    10h 46m
    $135–480
  7. Train to Portland International Airport, fly to Denver, bus

    1. Take the train from Seattle to Portlandtrain
    2. Fly from Portland International Airport (PDX) to Denver (DEN)planePDX - DEN
    3. Take the bus from Union Station Gate B18 to Main St & 3rd Avebus
    10h 34m
    $197–842
  8. Bus via Sacramento

    1. Take the bus from Seattle Bus Station 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 B18 to Main St & 3rd AvebusLd1 / ...
    43h 22m
    $175–421

Seattle to Longmont by bus

Calendar1Weekly Buses
Duration32h 47mAverage Duration
Ticket$271Cheapest 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 Main St & 3rd Ave via Spokane, Billings, Billings, MT, Casper Amtrak Station, Denver Union Station, and Union Station Gate B18 in around 32h 47m.

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