There are 8 ways to get from Boulder to Frederick by bus, plane, bus (Greyhound), 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, fly to Baltimore-Washington International Airport
best- Take the bus from US 36 & Flatiron Station Gate A to Denver Airport Station Gate 6
- Fly from Denver (DEN) to Baltimore-Washington International Airport (BWI)DEN - BWI
- Take the bus from Baltimore Airport to Frederick Bus Station
7h 53m$346–896Bus, fly to Washington Dulles International Airport
cheapest- Take the bus from US 36 & Flatiron Station Gate A to Denver Airport Station Gate 6
- Fly from Denver (DEN) to Washington Dulles International Airport (IAD)DEN - IAD
- Take the bus from Market St & Harrison St to Frederick Transit Station
8h 37m$150–682Bus
- Take the bus from Downtown Boulder Station Gate 1 to Union StationFf1 / ...
- Take the bus from Denver Union Station to Chicago Bus Station
- Take the bus from Chicago Bus Station to Frederick Bus Station
38h 41m$183–433Bus, train
- Take the bus from Broadway & 20th St to Union StationFf1 / ...
- Take the train from Denver to Chicago Union Station
- Take the train from Chicago Union Station to Rockville Amtrak
- Take the train from ROCKVILLE MARC wb to FREDERICK MARC wb
40h 13m$235–613Drive 1,590.7 mi
- Drive from Boulder to Frederick1,590.7 mi
27h 41m$291–420Bus, fly to Ronald Reagan Washington National Airport
- Take the bus from US 36 & Flatiron Station Gate A to Denver Airport Station Gate 6
- Fly from Denver (DEN) to Ronald Reagan Washington National Airport (DCA)DEN - DCA
- Take the bus from SHADY GROVE & station to Frederick Marc Station
8h 27m$262–1,219Bus, fly to Pittsburgh International Airport
- Take the bus from US 36 & Flatiron Station Gate A to Denver Airport Station Gate 6
- Fly from Denver (DEN) to Pittsburgh International Airport (PIT)DEN - PIT
- Take the bus from Pittsburgh Intermodal Station to Frederick Bus Station
11h 11m$331–871Bus, fly to Philadelphia International Airport, train
- Take the bus from US 36 & Flatiron Station Gate A to Denver Airport Station Gate 6
- Fly from Denver (DEN) to Philadelphia International Airport (PHL)DEN - PHL
- Take the train from 30th Street Station to BWI Thurgood Marshall
- Take the bus from BWI Amtrak Station to Frederick Transit Center
10h 27m$332–1,496
Boulder to Frederick by bus
Questions & Answers
The cheapest way to get from Boulder to Frederick is to bus which costs $180 - $440 and takes 38h 41m.
The fastest way to get from Boulder to Frederick is to bus and fly which takes 7h 53m and costs $340 - $900.
No, there is no direct bus from Boulder station to Frederick station. However, there are services departing from Downtown Boulder Station Gate 1 and arriving at Frederick Bus Station via Denver Union Station and Chicago Bus Station. The journey, including transfers, takes approximately 38h 41m.
The distance between Boulder and Frederick is 1591 miles. The road distance is 1600 miles.
The best way to get from Boulder to Frederick without a car is to bus which takes 38h 41m and costs $180 - $440.
It takes approximately 7h 53m to get from Boulder to Frederick, including transfers.
Boulder to Frederick bus services, operated by Regional Transportation District, depart from Downtown Boulder Station Gate 1.
Boulder to Frederick bus services, operated by Regional Transportation District, arrive at Union Station.
Frederick is 2h ahead of Boulder. It is currently 10:44 AM in Boulder and 12:44 PM in Frederick.
Yes, the driving distance between Boulder to Frederick is 1600 miles. It takes approximately 27h 41m to drive from Boulder to Frederick.
What companies run services between Boulder, CO, USA and Frederick, MD, USA?
You can take a bus from Downtown Boulder Station Gate 1 to Frederick Bus Station via Denver Union Station and Chicago Bus Station in around 38h 41m.
- Website
- southwest.com
Flights from Denver to Baltimore-Washington International Airport
- Ave. Duration
- 3h 19m
- When
- Every day
- Estimated price
- $130–650
Flights from Denver to Baltimore-Washington International Airport via Indianapolis
- Ave. Duration
- 4h 47m
- When
- Monday to Friday
- Estimated price
- $130–650
Flights from Denver to Baltimore-Washington International Airport via Columbus
- Ave. Duration
- 4h 50m
- When
- Wednesday and Thursday
- Estimated price
- $130–650
Flights from Denver to Baltimore-Washington International Airport via Pittsburgh International Airport
- Ave. Duration
- 4h 55m
- When
- Wednesday and Thursday
- Estimated price
- $130–650
Flights from Denver to Ronald Reagan Washington National Airport via St. Louis
- Ave. Duration
- 5h 1m
- When
- Every day
- Estimated price
- $260–1,200
Flights from Denver to Ronald Reagan Washington National Airport via Chicago Midway
- Ave. Duration
- 5h 2m
- When
- Monday, Tuesday, Thursday, Friday, Saturday, and Sunday
- Estimated price
- $260–1,200
Flights from Denver to Ronald Reagan Washington National Airport via Omaha
- Ave. Duration
- 5h
- When
- Wednesday and Thursday
- Estimated price
- $250–1,200
Flights from Denver to Washington Dulles International Airport
- Ave. Duration
- 3h 13m
- When
- Every day
- Estimated price
- $140–650
Flights from Denver to Pittsburgh International Airport
- Ave. Duration
- 2h 54m
- When
- Every day
- Estimated price
- $120–600
Flights from Denver to Pittsburgh International Airport via Chicago Midway
- Ave. Duration
- 4h 33m
- When
- Monday to Friday
- Estimated price
- $120–600
Flights from Denver to Pittsburgh International Airport via St. Louis
- Ave. Duration
- 4h 45m
- When
- Friday
- Estimated price
- $120–600
Flights from Denver to Pittsburgh International Airport via Nashville
- Ave. Duration
- 4h 45m
- When
- Wednesday and Thursday
- Estimated price
- $140–650
Flights from Denver to Philadelphia International Airport
- Ave. Duration
- 3h 27m
- When
- Every day
- Estimated price
- $140–700
Flights from Denver to Philadelphia International Airport via St. Louis
- Ave. Duration
- 5h
- When
- Monday and Saturday
- Estimated price
- $140–700
Flights from Denver to Philadelphia International Airport via Chicago Midway
- Ave. Duration
- 5h 6m
- When
- Monday, Tuesday, Wednesday, Thursday, Friday, and Sunday
- Estimated price
- $140–700
- Website
- united.com
Flights from Denver to Baltimore-Washington International Airport
- Ave. Duration
- 3h 24m
- When
- Every day
- Estimated price
- $130–650
Flights from Denver to Ronald Reagan Washington National Airport
- Ave. Duration
- 3h 24m
- When
- Every day
- Estimated price
- $250–1,200
Flights from Denver to Washington Dulles International Airport
- Ave. Duration
- 3h 21m
- When
- Every day
- Estimated price
- $140–650
Flights from Denver to Washington Dulles International Airport via Kansas City
- Ave. Duration
- 5h 47m
- When
- Every day
- Estimated price
- $140–650
Flights from Denver to Pittsburgh International Airport
- Ave. Duration
- 3h 6m
- When
- Every day
- Estimated price
- $120–600
Flights from Denver to Philadelphia International Airport
- Ave. Duration
- 3h 35m
- When
- Every day
- Estimated price
- $140–700
- Website
- flyfrontier.com
Flights from Denver to Ronald Reagan Washington National Airport
- Ave. Duration
- 3h 22m
- When
- Every day
- Estimated price
- $250–1,200
Flights from Denver to Pittsburgh International Airport
- Ave. Duration
- 3h 7m
- When
- Monday and Friday
- Estimated price
- $120–600
Flights from Denver to Philadelphia International Airport
- Ave. Duration
- 3h 32m
- When
- Monday, Thursday, Friday, Saturday, and Sunday
- Estimated price
- $140–700
- Website
- aa.com
Flights from Denver to Philadelphia International Airport
- Ave. Duration
- 3h 36m
- When
- Every day
- Estimated price
- $140–700
Rome2Rio's guide to Amtrak
Contact Details
- Phone
- +1 800-872-7245
- Website
- amtrak.com
Train from Denver to Chicago Union Station
- Ave. Duration
- 18h 40m
- Frequency
- Once daily
- Estimated price
- $120–330
- Website
- https://www.amtrak.com/home.html
Train from Chicago Union Station to Rockville Amtrak
- Ave. Duration
- 16h 36m
- Frequency
- Once daily
- Estimated price
- $110–270
- Website
- https://www.amtrak.com/home.html
Train from 30th Street Station to BWI Thurgood Marshall
- Ave. Duration
- 1h 27m
- Frequency
- Twice daily
- Estimated price
- $11–230
- Website
- https://www.amtrak.com/home.html
- Phone
- 1-866-743-3682
- Website
- mta.maryland.gov
Train from ROCKVILLE MARC wb to FREDERICK MARC wb
- Ave. Duration
- 1h 12m
- Frequency
- Twice daily
- Estimated price
- $2–10
- Website
- https://www.mta.maryland.gov
- Standard Fare
- $2–10
Rome2Rio's guide to Amtrak Northeast Regional
Contact Details
- Phone
- +1 800-872-7245
- Website
- amtrak.com
Train from 30th Street Station to BWI Thurgood Marshall
- Ave. Duration
- 1h 25m
- Frequency
- Hourly
- Estimated price
- $14–240
- Website
- https://www.amtrak.com/home.html
- Schedules at
- https://www.amtrak.com/northeast-regional-train
- Coach
- $14–240
- Business Class
- $60–280
Rome2Rio's guide to Amtrak Acela
Contact Details
- Phone
- +1 800-872-7245
- Website
- amtrak.com
Train from 30th Street Station to BWI Thurgood Marshall
- Ave. Duration
- 1h 24m
- Frequency
- 5 times a day
- Estimated price
- $24–650
- Schedules at
- https://www.amtrak.com/acela-train
- Website
- https://www.amtrak.com/home.html
- Business Class
- $24–460
- First Class
- $140–650
- 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
- Phone
- +1 410-912-6000
- reservations@bayrunnershuttle.com
- Website
- bayrunnershuttle.com
Bus from Baltimore Airport to Frederick Bus Station
- Ave. Duration
- 1h 15m
- Frequency
- 4 times a day
- Estimated price
- $70–90
- Schedules at
- bayrunnershuttle.com
Bus from BWI Amtrak Station to Frederick Transit Center
- Ave. Duration
- 1h 10m
- Frequency
- 4 times a day
- Estimated price
- $65–90
- Schedules at
- bayrunnershuttle.com
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 Chicago Bus Station
- Ave. Duration
- 20h 35m
- Frequency
- Once daily
- Estimated price
- $90–290
- Website
- https://www.greyhound.com/
Bus from Chicago Bus Station to Frederick Bus Station
- Ave. Duration
- 15h 15m
- Frequency
- Twice daily
- Estimated price
- $90–140
- Website
- https://www.greyhound.com/
Bus from Pittsburgh Intermodal Station to Frederick Bus Station
- Ave. Duration
- 3h 30m
- Frequency
- 3 times a day
- Estimated price
- $35–65
- Website
- https://www.greyhound.com/
- Phone
- 1-866-743-3682
- Website
- mta.maryland.gov
Bus from SHADY GROVE & station to Frederick Marc Station
- Ave. Duration
- 47 min
- Frequency
- Once daily
- Estimated price
- $2
- Website
- https://www.mta.maryland.gov
- Phone
- +1 703-771-5665
- Website
- loudoun.gov
Bus from Market St & Harrison St to Frederick Transit Station
- Ave. Duration
- 47 min
- Frequency
- Once daily
- Estimated price
- $1–11
- Schedules at
- loudoun.gov
- Local & Metro
- $1–2
- Commuter
- $11
Rome2Rio's guide to Amtrak
Contact Details
- Phone
- +1 800-872-7245
- Website
- amtrak.com
Bus from BWI Amtrak Station to Frederick Transit Center
- Ave. Duration
- 1h 5m
- Frequency
- 4 times a day
- Website
- https://www.amtrak.com/home.html
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
Travelling to the US: What do I need to know?
Read the travel guide
Need to know: Greyhound
Read the travel guide
Why you should take the train in the US
Read the travel guide
More Questions & Answers
There are 62+ hotels available in Frederick.


















