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How to get fromSan Diego to Boulderby plane, bus, bus (Amtrak), train, car, or shuttle

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There are 7 ways to get from San Diego to Boulder by plane, bus, bus (Amtrak), train, car, or shuttle

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 San Diego International Airport (SAN) to Denver (DEN)plane plane SAN - DEN
    2. Take the bus from Denver Airport Station Gate 8 to Downtown Boulder Stationbus bus
    3h 57m
    $124–208

  2. Fly to Colorado Springs Airport, bus

    cheapest
    1. Fly from San Diego International Airport (SAN) to Colorado Springs Airport (COS)plane plane SAN - COS
    2. Take the bus from Colorado Springs Airport to Denver International Airportbus bus
    3. Take the bus from Denver Airport Station Gate 8 to Downtown Boulder Stationbus bus
    6h 52m
    $123–446

  3. Bus via Santa Ana

    1. Take the bus from San Diego to Santa Anabus bus
    2. Take the bus from Santa Ana Bus Stop to Las Vegas BusTerminalbus bus
    3. Take the bus from Las Vegas BusTerminal to Denver Union Stationbus bus
    4. Take the bus from Union Station Gate B18 to Broadway & Euclid Avebus bus Ff2 / ...
    26h 43m
    $260–382

  4. Train, bus

    1. Take the train from San Diego to Fullerton Amtrak Stationtrain train
    2. Take the train from Fullerton Amtrak Station to Las Vegas Amtrak Stationtrain train
    3. Take the bus from Las Vegas Transportation Center to Denverbus bus
    4. Take the bus from 18th St & Stout St to 28th St & College Avebus bus Ff4
    30h 39m
    $426–815

  5. Drive 1,083.3 mi

    1. Drive from San Diego to Bouldercar car 1,083.3 mi
    17h 15m
    $198–286

  6. Bus, shuttle

    1. Take the bus from Broadway & 1st Av to Escondido Transit Centerbus bus 235 / ...
    2. Take a shuttle bus from Escondido, CA - 796 W Valley PKWY to 1100 S Main St. - Las Vegasshuttle bus Cbx
    3. Take the bus from Las Vegas BusTerminal to Denver Union Stationbus bus
    4. Take the bus from Union Station Gate B17 to Downtown Boulder Stationbus bus Ff1 / ...
    28h 27m
    $220–327

  7. Bus

    1. Take the bus from Broadway & 1st Av to Escondido Transit Centerbus bus 235 / ...
    2. Take the bus from Escondido to Las Vegasbus bus
    3. Take the bus from Las Vegas BusTerminal to Denver Union Stationbus bus
    4. Take the bus from Union Station Gate B17 to Downtown Boulder Stationbus bus Ff1 / ...
    28h 27m
    $244–362

San Diego to Boulder by bus

Calendar7Weekly Buses
Duration26h 43mAverage Duration
Ticket$260Cheapest Price
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Questions & Answers

Map of how to get from San Diego to Boulder.ExpandLaunch map view
  • Distance: 896.2 mi
  • Duration: 3h 57m

What companies run services between San Diego, CA, USA and Boulder, CO, USA?

You can take a bus from San Diego to Broadway & Euclid Ave via Santa Ana, Santa Ana Bus Stop, Las Vegas BusTerminal, Denver Union Station, and Union Station Gate B18 in around 26h 43m.

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Train operators
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