Serving Southern Maryland since 1956!
Keller Transportation, Inc.

Commuter Service

General Information

     Keller Transportation currently operates Maryland Transit Administration commuter bus routes from the Southern Maryland counties of Charles, St. Mary’s and Calvert to Washington, D.C.  The commuter service operates Monday through Friday, from the Southern Maryland area to Washington DC in the AM and from Washington DC to the Southern Maryland area in the PM.

     Please click on the schedules below for a complete PDF version of the actual MTA schedule.  The schedules will provide you with detailed maps, pick up and drop off locations, times, fares and information on Holiday Service and Weather and Emergency Plans.  Please call us at (800) 273-8618 if you need further assistance.

Automatic Email Updates

     Adverse weather conditions can necessitate a change in the operating schedule.  Please read the Weather & Emergency Plan with in the schedule and sign up for the Maryland Transit Administration’s E-Mail Update Service at  Should the schedule be changed due to an emergency or inclement weather, MTA will immediately notify all registered riders via e-mail.

Guaranteed Ride Home Program

     Concerned as to how you would get home in an emergency?  Call Commuter Connections at (800) 745-7433 and sign up for the Guaranteed Ride Home Program.  There are some limitations and you must be registered in advance to use the service.

Commuter Schedules

Click an image below to view the schedule

Schedule 630Schedule 640Schedule 725Schedule 735Schedule 830Schedule 840Schedule 850


If you need commuter service from outside of our area,
call the Maryland Transit Administration for assistance at (866) RIDE-MTA.


Wheelchair accessibleAll coaches are wheelchair accessible.