The average bus between Potomac and Gaithersburg takes 59 min and the fastest bus takes 51 min. There is an hourly bus service from Potomac to Gaithersburg. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Buses run hourly between Potomac and Gaithersburg. The earliest departure is at 5:50 AM in the morning, and the last departure from Potomac is at 7:53 PM which arrives into Gaithersburg at 8:51 PM. All services require a transfer at Rockville+Bay A and take an average of 59 min. The schedules shown below are for the next available departures.

1h 5m • 1 change

59 min • 1 change

53 min • 1 change

1h • 1 change

53 min • 1 change

52 min • 1 change

52 min • 1 change

1h 2m • 1 change

53 min • 1 change

52 min • 1 change

52 min • 1 change

1h 2m • 1 change
Want to know about travelling from Potomac to Gaithersburg? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.
No, there is no direct bus from Potomac to Gaithersburg. However, there are services departing from Potomac station and arriving at Gaithersburg station via Rockville+Bay A. The journey, including transfers, takes approximately 59 min.
Potomac to Gaithersburg bus services, operated by Washington Metropolitan Area Transit Authority, depart from Falls Rd+Glenolden Rd station.
Potomac to Gaithersburg bus services, operated by Washington Metropolitan Area Transit Authority, arrive at N Frederick Ave & Brookes Ave station.
The distance between Potomac and Gaithersburg is 13.9 km. The road distance is 21 km.
You can take a bus from Falls Rd+Glenolden Rd to N Frederick Ave & Brookes Ave via Rockville+Bay A and Rockville Station & Bay B in around 51 min.