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How to get fromSt. Louis Airport (STL) to Boulderby plane, bus, bus (Greyhound) or car

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There are 8 ways to get from St. Louis Airport (STL) to Boulder by plane, bus, bus (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 to Denver, bus

    best
    1. Fly from Lambert–St. Louis International Airport (STL) to Denver (DEN)planeSTL - DEN
    2. Take the bus from Denver Airport Station Gate 8 to Downtown Boulder Stationbus
    3h 57m
    $145–783

  2. Bus

    cheapest
    1. Take the bus from St Louis Bus Station to Denver Union StationbusGreyhound US1200
    2. Take the bus from Union Station Gate B17 to Broadway & Regent DrbusFf1 / ...
    19h 43m
    $80–326

  3. Drive 854.3 mi

    1. Drive from St. Louis Airport (STL) to Bouldercar854.3 mi
    13h 21m
    $156–226

  4. Fly to Cheyenne Airport, drive

    1. Fly from Lambert–St. Louis International Airport (STL) to Cheyenne Airport (CYS)planeSTL - CYS
    2. Drive from Cheyenne Airport (CYS) to Bouldercar
    6h 50m
    $127–613

  5. Fly to Colorado Springs Airport, bus

    1. Fly from Lambert–St. Louis International Airport (STL) to Colorado Springs Airport (COS)planeSTL - COS
    2. Take the bus from Colorado Springs Airport to Denver International Airportbus
    3. Take the bus from Denver Airport Station Gate 8 to Downtown Boulder Stationbus
    8h 37m
    $152–646

  6. Fly to Eagle County Regional Airport, bus

    1. Fly from Lambert–St. Louis International Airport (STL) to Eagle County Regional Airport (EGE)planeSTL - EGE
    2. Take the bus from Eagle County Airport to Avon Stationbus
    3. Take the bus from Avon Station to Union Stationbus
    4. Take the bus from Union Station Gate B17 to Broadway & Regent Drbus
    10h 17m
    $135–626

  7. Fly to Arapahoe County Airport, bus

    1. Fly from Lambert–St. Louis International Airport (STL) to Arapahoe County Airport (APA)planeSTL - APA
    2. Take the bus from Union Station Gate B17 to Broadway & Regent Drbus
    13h 20m
    $167–712

  8. Bus via Burlington

    1. Take the bus from Lambert-St. Louis International Airport to Burlingtonbus
    2. Take the bus from Burlington to Denverbus
    3. Take the bus from Union Station Gate B17 to Downtown Boulder StationbusFf1 / ...
    23h 49m
    $185–395

St. Louis Airport (STL) to Boulder by train and bus

Calendar7Weekly Services
Duration19h 43mAverage Duration
Ticket$80Cheapest Price
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Questions & Answers

What companies run services between St. Louis Airport (STL), USA and Boulder, CO, USA?

You can take a train from LAMBERT AIRPORT TERMINAL #1 station to Broadway & Regent Dr via CIVIC CENTER station, St Louis Bus Station, Denver Union Station, and Union Station Gate B17 in around 19h 43m.

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