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How to get fromSan Diego Airport (SAN) to Boulderby plane, bus, bus (Greyhound), train, car, or bus (Flixbus, Greyhound)

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There are 6 ways to get from San Diego Airport (SAN) to Boulder by plane, bus, bus (Greyhound), train, car, or bus (Flixbus, Greyhound)

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
    $124–211

  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
    $115–425

  3. Bus via Santa Ana

    1. Take the bus from San Diego Greyhound Bus Stop to Santa Ana Bus Stopbus bus
    2. Take the bus from Santa Ana Bus Stop to Las Vegas Bus Terminalbus bus
    3. Take the bus from Las Vegas Bus Terminal to Denver Union Stationbus bus
    4. Take the bus from Union Station Gate B18 to Broadway & Euclid Avebus bus Ff2 / ...
    27h 51m
    $166–328

  4. Train, bus

    1. Take the train from San Diego Old Town Transportation Center 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 Union Station Gate B17 to Downtown Boulder Stationbus bus Ff1 / ...
    31h 31m
    $406–816

  5. Drive 1,084.6 mi

    1. Drive from San Diego Airport (SAN) to Bouldercar car 1,084.6 mi
    17h 17m
    $198–286

  6. Bus

    1. Take the bus from San Diego to Las Vegas Stripbus bus
    2. Take the bus from Las Vegas Bus Terminal to Denver Union Stationbus bus
    3. Take the bus from Union Station Gate B17 to Downtown Boulder Stationbus bus Ff1 / ...
    29h 2m
    $195–360

San Diego Airport (SAN) to Boulder by bus

Calendar7Weekly Buses
Duration27h 51mAverage Duration
Ticket$166Cheapest Price
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Questions & Answers

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

What companies run services between San Diego Airport (SAN), USA and Boulder, CO, USA?

You can take a bus from Terminal 1 Transportation Island to Broadway & Euclid Ave via Old Town Transit Center, San Diego Greyhound Bus Stop, Santa Ana Bus Stop, Las Vegas Bus Terminal, Denver Union Station, and Union Station Gate B18 in around 27h 51m.

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Train operators
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