There are 11 ways to get from Portsmouth to Gaithersburg by bus, plane, train, bus (Flixbus), car, subway, or bus (Greyhound)
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 Boston Logan Airport, fly to Ronald Reagan Washington National Airport
best- Take the bus from Portsmouth to Bostonbus
- Fly from Boston Logan Airport (BOS) to Ronald Reagan Washington National Airport (DCA)plane BOS - DCA
5h 21m$509–1,234Bus
cheapest- Take the bus from Portsmouth Bus Stop to New York Midtownbus
- Take the bus from New York Midtown to Baltimore Downtown Bus Stationbus
- Take the bus from Warner St to Gaithersburg Park & Ridebus 201
13h 30m$82–134Bus, train
- Take the bus from Portsmouth Bus Stop to Bostonbus FlixBus N2615
- Take the train from Boston to Washington Union Stationtrain Acela
9h 58m$153–324Drive 486.6 mi
- Drive from Portsmouth to Gaithersburgcar 486.6 mi
9h 2m$89–129Bus to Boston Logan Airport, fly to Washington Dulles International Airport, subway
- Take the bus from Portsmouth to Bostonbus
- Fly from Boston Logan Airport (BOS) to Washington Dulles International Airport (IAD)plane BOS - IAD
- Take the subway from Washington Dulles International Airport, Silver Line Center Platform to Farragut West, Blue/Orange/Silver Line Track 1 Platformsubway
5h 49m$519–1,133Bus to Portland, fly to Washington Dulles International Airport, subway
- Take the bus from Portsmouth Bus Stop to City of Portlandbus
- Fly from Portland (PWM) to Washington Dulles International Airport (IAD)plane PWM - IAD
- Take the subway from Washington Dulles International Airport, Silver Line Center Platform to Farragut West, Blue/Orange/Silver Line Track 1 Platformsubway
6h 3m$89–474Bus to Portland, fly to Baltimore-Washington International Airport, bus
- Take the bus from Portsmouth Bus Stop to City of Portlandbus
- Fly from Portland (PWM) to Baltimore-Washington International Airport (BWI)plane PWM - BWI
- Take the bus from BWI INTERNATIONAL TERMINAL wb LOWER LEVEL to Gaithersburg Park & Ridebus
6h 44m$97–570Bus, bus to Manchester Airport, fly to Ronald Reagan Washington National Airport
- Take the bus from Portsmouth Bus Stop to Bostonbus
- Take the bus from Boston to Boston Manchester Airportbus
- Fly from Manchester Airport (MHT) to Ronald Reagan Washington National Airport (DCA)plane MHT - DCA
6h 55m$120–638Bus, bus to Manchester Airport, fly to Washington Dulles International Airport, subway
- Take the bus from Portsmouth Bus Stop to Bostonbus
- Take the bus from Boston to Boston Manchester Airportbus
- Fly from Manchester Airport (MHT) to Washington Dulles International Airport (IAD)plane MHT - IAD
- Take the subway from Washington Dulles International Airport, Silver Line Center Platform to Farragut West, Blue/Orange/Silver Line Track 1 Platformsubway
7h 28m$85–457Bus, train via New York
- Take the bus from Portsmouth Bus Stop to Bostonbus
- Take the train from Boston to Ny Moynihan Train Hall At Penn Stationtrain
- Take the train from Ny Moynihan Train Hall At Penn Station to Washington Union Stationtrain
10h 45m$126–924Bus via Boston
- Take the bus from Portsmouth to Bostonbus
- Take the bus from Boston to Port Authority Bus Terminalbus
- Take the bus from Port Authority Bus Terminal to Baltimore Downtown Bus Stationbus
- Take the bus from Warner St to Gaithersburg Park & Ridebus 201
15h 1m$93–227
Portsmouth to Gaithersburg by bus, train, and subway
Questions & Answers
The cheapest way to get from Portsmouth to Gaithersburg is to bus which costs $80 - $140 and takes 13h 30m.
The fastest way to get from Portsmouth to Gaithersburg is to bus and fly which takes 5h 21m and costs $500 - $1,300.
No, there is no direct bus from Portsmouth to Gaithersburg. However, there are services departing from Portsmouth Bus Stop and arriving at Gaithersburg Park & Ride via New York Midtown and Warner St. The journey, including transfers, takes approximately 13h 30m.
The distance between Portsmouth and Gaithersburg is 482 miles. The road distance is 489.4 miles.
The best way to get from Portsmouth to Gaithersburg without a car is to bus and train which takes 9h 58m and costs $150 - $330.
It takes approximately 5h 21m to get from Portsmouth to Gaithersburg, including transfers.
Portsmouth to Gaithersburg bus services, operated by Flixbus USA, depart from Portsmouth Bus Stop station.
Portsmouth to Gaithersburg bus services, operated by Flixbus USA, arrive at New York Midtown station.
Yes, the driving distance between Portsmouth to Gaithersburg is 489 miles. It takes approximately 9h 2m to drive from Portsmouth to Gaithersburg.
There are 205+ hotels available in Gaithersburg.
What companies run services between Portsmouth, NH, USA and Gaithersburg, MD, USA?
You can take a bus from Portsmouth Bus Stop to Gaithersburg Park & Ride via New York Midtown, Baltimore Downtown Bus Station, and Warner St in around 13h 30m.
- Website
- aa.com
Flights from Boston Logan Airport to Ronald Reagan Washington National Airport
- Ave. Duration
- 1h 54m
- When
- Every day
- Estimated price
- $80–550
Flights from Manchester Airport to Ronald Reagan Washington National Airport
- Ave. Duration
- 1h 54m
- When
- Every day
- Estimated price
- $100–600
- Website
- united.com
Flights from Boston Logan Airport to Washington Dulles International Airport
- Ave. Duration
- 1h 40m
- When
- Every day
- Estimated price
- $55–350
Flights from Boston Logan Airport to Washington Dulles International Airport via Newark
- Ave. Duration
- 3h 56m
- When
- Every day
- Estimated price
- $55–350
Flights from Portland to Washington Dulles International Airport
- Ave. Duration
- 1h 51m
- When
- Every day
- Estimated price
- $75–450
Flights from Portland to Washington Dulles International Airport via Newark
- Ave. Duration
- 4h 6m
- When
- Every day
- Estimated price
- $75–450
Flights from Manchester Airport to Washington Dulles International Airport
- Ave. Duration
- 1h 50m
- When
- Every day
- Estimated price
- $65–420
- Website
- delta.com
Flights from Boston Logan Airport to Ronald Reagan Washington National Airport
- Ave. Duration
- 1h 58m
- When
- Every day
- Estimated price
- $80–550
- Website
- southwest.com
Flights from Portland to Baltimore-Washington International Airport
- Ave. Duration
- 1h 40m
- When
- Every day
- Estimated price
- $85–550
- Website
- jetblue.com
Flights from Boston Logan Airport to Ronald Reagan Washington National Airport
- Ave. Duration
- 1h 43m
- When
- Every day
- Estimated price
- $80–550
Rome2Rio's guide to Amtrak Acela
Contact DetailsContact Details
- Phone
- +1 800-872-7245
- Website
- Amtrak
Train from Boston to Washington Union Station
- Ave. Duration
- 7h 1m
- Frequency
- Every 4 hours
- Estimated price
- $100–900
- Schedules at
- Amtrak Acela
- Website
- Amtrak
- Business Class
- $100–550
- First Class
- $310–900
Train from Boston to Ny Moynihan Train Hall At Penn Station
- Ave. Duration
- 3h 49m
- Frequency
- Every 4 hours
- Estimated price
- $50–750
- Schedules at
- Amtrak Acela
- Website
- Amtrak
- Business Class
- $50–490
- First Class
- $200–750
Train from Ny Moynihan Train Hall At Penn Station to Washington Union Station
- Ave. Duration
- 3h
- Frequency
- Hourly
- Estimated price
- $50–750
- Schedules at
- Amtrak Acela
- Website
- Amtrak
- Business Class
- $50–490
- First Class
- $200–750
Rome2Rio's guide to Amtrak
Contact DetailsContact Details
- Phone
- +1 800-872-7245
- Website
- Amtrak
Train from Boston to Washington Union Station
- Ave. Duration
- 8h 16m
- Frequency
- Every 4 hours
- Estimated price
- $140–300
- Website
- Amtrak
Train from Boston to Ny Moynihan Train Hall At Penn Station
- Ave. Duration
- 4h 2m
- Frequency
- Every 3 hours
- Estimated price
- $70–160
- Website
- Amtrak
Train from Ny Moynihan Train Hall At Penn Station to Washington Union Station
- Ave. Duration
- 3h 35m
- Frequency
- Hourly
- Estimated price
- $65–150
- Website
- Amtrak
Subway from Washington Dulles International Airport, Silver Line Center Platform to Farragut West, Blue/Orange/Silver Line Track 1 Platform
- Ave. Duration
- 46 min
- Frequency
- Every 15 minutes
- Estimated price
- $2–3
- Website
- Washington Metropolitan Area Transit Authority
- standard fare after 9:30 p.m
- $2–3
Subway from Washington Dulles International Airport, Silver Line Center Platform to Farragut West, Blue/Orange/Silver Line Track 1 Platform
- Ave. Duration
- 46 min
- Frequency
- Every 15 minutes
- Estimated price
- $2–3
- Website
- Washington Metropolitan Area Transit Authority
- standard fare after 9:30 p.m
- $2–3
Subway from Washington Dulles International Airport, Silver Line Center Platform to Farragut West, Blue/Orange/Silver Line Track 1 Platform
- Ave. Duration
- 46 min
- Frequency
- Every 15 minutes
- Estimated price
- $2–3
- Website
- Washington Metropolitan Area Transit Authority
- standard fare after 9:30 p.m
- $2–3
- Phone
- +1 603-430-1100
- Website
- C & J Travel
Bus from Portsmouth to Boston
- Ave. Duration
- 1h 30m
- Frequency
- Once daily
- Estimated price
- $15–27
- Website
- C & J Travel
Bus from Portsmouth to Boston
- Ave. Duration
- 1h 30m
- Frequency
- Once daily
- Estimated price
- $15–27
- Website
- C & J Travel
Bus from Portsmouth to Boston
- Ave. Duration
- 1h 30m
- Frequency
- Once daily
- Estimated price
- $15–27
- Website
- C & J Travel
- Phone
- +1 (855) 626-8585
- Website
- Flixbus USA
Bus from Portsmouth Bus Stop to Boston
- Ave. Duration
- 1h 5m
- Frequency
- Once daily
- Estimated price
- $8–15
- Schedules at
- Flixbus USA
Bus from Portsmouth Bus Stop to New York Midtown
- Ave. Duration
- 6h 20m
- Frequency
- Once daily
- Estimated price
- $40–75
- Schedules at
- Flixbus USA
Bus from New York Midtown to Baltimore Downtown Bus Station
- Ave. Duration
- 3h 25m
- Frequency
- Every 2 hours
- Estimated price
- $35–60
- Schedules at
- Flixbus USA
Bus from Portsmouth Bus Stop to City of Portland
- Ave. Duration
- 55 min
- Frequency
- Once daily
- Estimated price
- $7–13
- Schedules at
- Flixbus USA
Bus from Portsmouth Bus Stop to City of Portland
- Ave. Duration
- 55 min
- Frequency
- Once daily
- Estimated price
- $7–13
- Schedules at
- Flixbus USA
Bus from Portsmouth Bus Stop to Boston
- Ave. Duration
- 1h 5m
- Frequency
- Once daily
- Estimated price
- $8–15
- Schedules at
- Flixbus USA
Bus from Portsmouth Bus Stop to Boston
- Ave. Duration
- 1h 5m
- Frequency
- Once daily
- Estimated price
- $8–15
- Schedules at
- Flixbus USA
Bus from Portsmouth Bus Stop to Boston
- Ave. Duration
- 1h 5m
- Frequency
- Once daily
- Estimated price
- $8–15
- Schedules at
- Flixbus USA
Rome2Rio's guide to Greyhound USA
Contact DetailsContact Details
- Phone
- +1 214-849-8100
- [email protected]
- Website
- Greyhound
Bus from Portsmouth Bus Stop to Boston
- Ave. Duration
- 1h 25m
- Frequency
- Once daily
- Estimated price
- $8–17
- Website
- Greyhound
Bus from Portsmouth Bus Stop to City of Portland
- Ave. Duration
- 1h
- Frequency
- Once daily
- Estimated price
- $7–15
- Website
- Greyhound
Bus from Portsmouth Bus Stop to City of Portland
- Ave. Duration
- 1h
- Frequency
- Once daily
- Estimated price
- $7–15
- Website
- Greyhound
Bus from Portsmouth Bus Stop to Boston
- Ave. Duration
- 1h 25m
- Frequency
- Once daily
- Estimated price
- $8–17
- Website
- Greyhound
Bus from Boston to Boston Manchester Airport
- Ave. Duration
- 1h 5m
- Frequency
- Twice daily
- Estimated price
- $7–15
- Website
- Greyhound
Bus from Portsmouth Bus Stop to Boston
- Ave. Duration
- 1h 25m
- Frequency
- Once daily
- Estimated price
- $8–17
- Website
- Greyhound
Bus from Boston to Boston Manchester Airport
- Ave. Duration
- 1h 5m
- Frequency
- Twice daily
- Estimated price
- $7–15
- Website
- Greyhound
Bus from Portsmouth Bus Stop to Boston
- Ave. Duration
- 1h 25m
- Frequency
- Once daily
- Estimated price
- $8–17
- Website
- Greyhound
Bus from Boston to Port Authority Bus Terminal
- Ave. Duration
- 4h 50m
- Frequency
- Hourly
- Estimated price
- $30–65
- Website
- Greyhound
Bus from Port Authority Bus Terminal to Baltimore Downtown Bus Station
- Ave. Duration
- 3h 15m
- Frequency
- Every 3 hours
- Estimated price
- $35–70
- Website
- Greyhound
- Phone
- 1-866-743-3682
- Website
- Maryland Transit
Bus from Warner St to Gaithersburg Park & Ride
- Ave. Duration
- 1h 45m
- Frequency
- Every 4 hours
- Estimated price
- $2
- Website
- Maryland Transit
Bus from BWI INTERNATIONAL TERMINAL wb LOWER LEVEL to Gaithersburg Park & Ride
- Ave. Duration
- 1h 18m
- Frequency
- Every 2 hours
- Estimated price
- $2
- Website
- Maryland Transit
Bus from Warner St to Gaithersburg Park & Ride
- Ave. Duration
- 1h 45m
- Frequency
- Every 4 hours
- Estimated price
- $2
- Website
- Maryland Transit
- Phone
- 1-800-343-9999
- Website
- Peter Pan
Bus from Port Authority Bus Terminal to Baltimore Downtown Bus Station
- Ave. Duration
- 3h 45m
- Frequency
- Every 2 hours
- Estimated price
- $45–130
- Website
- Peter Pan
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