Ride On Flex - New Call Center Option 240-301-3842

Flex: Book and go!

Traveling in a Flex zone? Lucky you!

If your trip starts and ends within a single zone, Flex is a convenient new option for you and an incredible value. Welcome to transit on demand and a 2020 National Association of Counties (NACo) Innovation Award Winner.

The Zones


Mon-Fri, 9:00 a.m. to 3:30 p.m.

map of Rockville Zone

Text description of Rockville Zone


Mon-Fri, 6 to 9 a.m. & 3:30 to 7:00 p.m.

map of Glenmont/Wheaton Zone

Text description of Glenmont/Wheaton Zone

Video transcript | ver con subtitulos en español

What is FlexMCDOT’s new on demand transit service helps you get around in defined Rockville and Glenmont/Wheaton zones. Ride On Flex has no fixed stops or fixed schedules – it comes when you book a ride during regular service hours. Best of all, you pay only standard Ride On fare to ride Flex—no more than $1!


  • connects riders in the zones to transit hubs, commercial centers, public services—and home.
  • uses Ride On Flex mobile and a new call center option for booking all rides.
  • features brand-new 11 passenger buses with wheelchair accessibility and free WiFi.
  • accepts reservations only for same-day, on demand service—you are offered the next available time.
  • accepts ride requests to and from any location within the serviced zone, including curb to curb for those with disabilities .
  • a new call center option if no smartphone or a special need; call 240-301-3842
  • takes only cash and SmarTrip® cards, passes and tokens.
  • a 2020 National Association of Counties (NACo) Innovation Award Winner  
Comments / questions

Flex Microtransit Performance Assessment Report

Need help, or have a comment?

Please visit our frequently asked questions (FAQ). If we haven’t answered your question, please contact us at RideOn.FlexCustomerService@montgomerycountymd.gov, or call 311 (240-777-0311 outside the county). TTY (for hearing impaired): Maryland Relay 711.

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Connecting People and Places

To realize a future for Montgomery County that includes a first-rate, multi-modal transportation system, MCDOT is expanding choices for all the users of our network. The Ride On Flex represents the third tier of bus service in a four-tier plan.