Rome2Rio

How to get fromBoulder to San Diegoby bus, plane, bus (Greyhound, Flixbus), train or car

Find Transport to San Diego

See all options

There are 5 ways to get from Boulder to San Diego by bus, plane, bus (Greyhound, Flixbus), train, 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. Bus to Denver, fly

    best
    1. Take the bus from US 36 & Flatiron Station Gate A to Denver Airport Station Gate 6bus
    2. Fly from Denver (DEN) to San Diego International Airport (SAN)planeDEN - SAN
    5h 12m
    $188–561
  2. Bus

    cheapest
    1. Take the bus from Downtown Boulder Station Gate 1 to Union StationbusFf1 / ...
    2. Take the bus from Denver Union Station to South Strip Transit Terminalbus
    3. Take the bus from South Strip Transit Terminal to Santa Ana Bus Stopbus
    4. Take the bus from Santa Ana Bus Stop to San Diegobus
    26h 36m
    $119–253
  3. Bus, train

    1. Take the bus from Broadway & 20th St to Union StationbusFf1 / ...
    2. Take the bus from Denver to Las Vegas Transportation Centerbus
    3. Take the train from Las Vegas Amtrak Station to Fullerton Amtrak Stationtrain
    4. Take the train from Fullerton Amtrak Station to San Diegotrain
    32h 5m
    $192–416
  4. Drive 1,084.6 mi

    1. Drive from Boulder to San Diegocar1,084.6 mi
    17h 5m
    $198–286
  5. Bus, bus to Colorado Springs Airport, fly

    1. Take the bus from US 36 & Flatiron Station Gate A to Denver Airport Station Gate 6bus
    2. Take the bus from Denver International Airport to Colorado Springs Airportbus
    3. Fly from Colorado Springs Airport (COS) to San Diego International Airport (SAN)planeCOS - SAN
    8h 9m
    $133–521

Boulder to San Diego by bus

Calendar7Weekly Buses
Duration26h 36mAverage Duration
Ticket$119Cheapest Price
See schedules

Questions & Answers

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

You can take a bus from Downtown Boulder Station Gate 1 to San Diego via Denver Union Station, South Strip Transit Terminal, and Santa Ana Bus Stop in around 26h 36m.

Airlines
Train operators
Bus operators

Want to know more about travelling around United States

Rome2Rio's Travel Guide series provide vital information for the global traveller. Filled with useful and timely travel information, the guides answer all the hard questions - such as 'How do I buy a ticket?', 'Should I book online before I travel? ', 'How much should I expect to pay?', 'Do the trains and buses have Wifi?' - to help you get the most out of your next trip.

Related travel guides

Need to know: Greyhound

Read the travel guideNeed to know: Greyhound

More Questions & Answers