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.
Bus to Denver, fly
best- Take the bus from US 36 & Flatiron Station Gate A to Denver Airport Station Gate 6
- Fly from Denver (DEN) to San Diego International Airport (SAN)DEN - SAN
5h 12m$188–561Bus
cheapest- Take the bus from Downtown Boulder Station Gate 1 to Union StationFf1 / ...
- Take the bus from Denver Union Station to South Strip Transit Terminal
- Take the bus from South Strip Transit Terminal to Santa Ana Bus Stop
- Take the bus from Santa Ana Bus Stop to San Diego
26h 36m$119–253Bus, train
- Take the bus from Broadway & 20th St to Union StationFf1 / ...
- Take the bus from Denver to Las Vegas Transportation Center
- Take the train from Las Vegas Amtrak Station to Fullerton Amtrak Station
- Take the train from Fullerton Amtrak Station to San Diego
32h 5m$192–416Drive 1,084.6 mi
- Drive from Boulder to San Diego1,084.6 mi
17h 5m$198–286Bus, bus to Colorado Springs Airport, fly
- Take the bus from US 36 & Flatiron Station Gate A to Denver Airport Station Gate 6
- Take the bus from Denver International Airport to Colorado Springs Airport
- Fly from Colorado Springs Airport (COS) to San Diego International Airport (SAN)COS - SAN
8h 9m$133–521
Boulder to San Diego by bus
Questions & Answers
The cheapest way to get from Boulder to San Diego is to bus which costs $110 - $260 and takes 26h 36m.
The fastest way to get from Boulder to San Diego is to bus and fly which takes 5h 12m and costs $180 - $600.
No, there is no direct bus from Boulder station to San Diego. However, there are services departing from Downtown Boulder Station Gate 1 and arriving at San Diego via Denver Union Station, South Strip Transit Terminal and Santa Ana Bus Stop. The journey, including transfers, takes approximately 26h 36m.
The distance between Boulder and San Diego is 906 miles. The road distance is 1090.9 miles.
The best way to get from Boulder to San Diego without a car is to bus which takes 26h 36m and costs $110 - $260.
It takes approximately 5h 12m to get from Boulder to San Diego, including transfers.
Boulder to San Diego bus services, operated by Regional Transportation District, depart from Downtown Boulder Station Gate 1.
Boulder to San Diego bus services, operated by Regional Transportation District, arrive at Union Station.
San Diego is 1h behind Boulder. It is currently 10:24 PM in Boulder and 9:24 PM in San Diego.
Yes, the driving distance between Boulder to San Diego is 1091 miles. It takes approximately 17h 5m to drive from Boulder to San Diego.
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.
- Website
- southwest.com
Flights from Denver to San Diego International Airport
- Ave. Duration
- 2h 27m
- When
- Every day
- Estimated price
- $90–490
Flights from Denver to San Diego International Airport via Las Vegas
- Ave. Duration
- 4h 3m
- When
- Every day
- Estimated price
- $95–500
Flights from Denver to San Diego International Airport via Phoenix
- Ave. Duration
- 4h 5m
- When
- Saturday
- Estimated price
- $95–500
Flights from Colorado Springs Airport to San Diego International Airport
- Ave. Duration
- 2h 25m
- When
- Monday, Thursday, Friday, Saturday, and Sunday
- Estimated price
- $85–450
Flights from Colorado Springs Airport to San Diego International Airport via Phoenix
- Ave. Duration
- 4h 27m
- When
- Every day
- Estimated price
- $85–460
Flights from Colorado Springs Airport to San Diego International Airport via Las Vegas
- Ave. Duration
- 4h 11m
- When
- Monday and Saturday
- Estimated price
- $85–460
Flights from Colorado Springs Airport to San Diego International Airport via Denver
- Ave. Duration
- 4h 22m
- When
- Monday to Wednesday
- Estimated price
- $90–480
- Website
- united.com
Flights from Denver to San Diego International Airport
- Ave. Duration
- 2h 29m
- When
- Every day
- Estimated price
- $90–490
Flights from Colorado Springs Airport to San Diego International Airport via Denver
- Ave. Duration
- 4h 35m
- When
- Every day
- Estimated price
- $90–480
- Website
- alaskaair.com
Flights from Denver to San Diego International Airport
- Ave. Duration
- 2h 24m
- When
- Every day
- Estimated price
- $90–490
- Website
- flyfrontier.com
Flights from Denver to San Diego International Airport
- Ave. Duration
- 2h 32m
- When
- Every day
- Estimated price
- $170–390
Rome2Rio's guide to Amtrak
Contact Details
- Phone
- +1 800-872-7245
- Website
- amtrak.com
Train from Las Vegas Amtrak Station to Fullerton Amtrak Station
- Ave. Duration
- 20h 32m
- Frequency
- Twice daily
- Estimated price
- $90–290
- Website
- https://www.amtrak.com/home.html
- Coach Seat - Advance Purchase
- $90–250
- Coach Seat short notice purchase
- $120–290
- Business - advance purchase
- $170–700
- Business Class
- $260–650
Train from Fullerton Amtrak Station to San Diego
- Ave. Duration
- 2h 23m
- Frequency
- Every 2 hours
- Estimated price
- $29–33
- Website
- https://www.amtrak.com/home.html
- Phone
- +1 303-299-6000
- Website
- rtd-denver.com
Bus from US 36 & Flatiron Station Gate A to Denver Airport Station Gate 6
- Ave. Duration
- 40 min
- Frequency
- Hourly
- Estimated price
- $3
- Website
- https://www.rtd-denver.com/
- Adult
- $3
Bus from Downtown Boulder Station Gate 1 to Union Station
- Ave. Duration
- 51 min
- Frequency
- Hourly
- Estimated price
- $3
- Website
- https://www.rtd-denver.com/
- Adult
- $3
Bus from Broadway & 20th St to Union Station
- Ave. Duration
- 45 min
- Frequency
- Hourly
- Estimated price
- $3
- Website
- https://www.rtd-denver.com/
- Adult
- $3
Rome2Rio's guide to Greyhound USA
Contact Details
- Phone
- +1 214-849-8100
- ifsr@greyhound.com
- Website
- greyhound.com
Bus from Denver Union Station to South Strip Transit Terminal
- Ave. Duration
- 15h 30m
- Frequency
- Once daily
- Estimated price
- $65–140
- Website
- https://www.greyhound.com/
Bus from South Strip Transit Terminal to Santa Ana Bus Stop
- Ave. Duration
- 5h 30m
- Frequency
- Twice daily
- Estimated price
- $35–65
- Website
- https://www.greyhound.com/
- Phone
- +1 (855) 626-8585
- Website
- flixbus.com
Bus from Santa Ana Bus Stop to San Diego
- Ave. Duration
- 1h 45m
- Frequency
- Once daily
- Estimated price
- $16–45
- Schedules at
- flixbus.com
- Phone
- +1 800-923-1799
- contactus@omexusa.net
- Website
- omnibusexpress.com
Bus from Denver to Las Vegas Transportation Center
- Ave. Duration
- 4h 45m
- Frequency
- 3 times a day
- Estimated price
- $70–90
- Schedules at
- omnibusexpress.com
- Phone
- +1 719-687-3456
- Website
- groometransportation.com
Bus from Denver International Airport to Colorado Springs Airport
- Ave. Duration
- 2h 25m
- Frequency
- Hourly
- Estimated price
- $40–60
- Website
- https://groometransportation.com/colorado-springs/
Want to know more about travelling around United States
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