MET Transit provides fixed-route and paratransit bus service to the City of Billings Monday-Saturday.

[3] Google has MET routes attached to its trip planner, and 3rd party mobile applications are now available for the iPhone and other platforms.

MET Transit began operation in 1973 with only five fixed routes; these included Crosstown, Grand, Broadwater, Central, and Southside.

In the summer of 2008, construction began on the new Downtown transfer center at 220 N. 25th Street; this was completed in early 2009 and it was open for business.

In 2013, MET faced another schedule change but added more service to the West-End and the South Side.

The new "West-End" bus (originally called "Southwest" and running every half-hour) was changed into a one-hour route that extended to cover the V.A.

Clinic on Spring Creek Drive and Zoo Montana on Shiloh Road and Pierce Parkway.

Disabled veterans can ride free on all the MET bus routes as long as the individuals show the MET driver their Department of Veterans Affairs identification card indicating "Service Connected"; the vet is not required to have a bus pass.

Also in 2014, the MET will provide its first shuttle service to the Magic Blues Fest at South Park.

The MET serves all five wards in the city of Billings with easily blue identifiable buses.

All routes come together at the Stewart Park Transfer Center just west of Rimrock Mall except the #1 - Downtown Circulator.

In August 2022, Billings MET Transit announced plans to buy four electric buses with funds awarded by a grant program, which totaled $3,880,316.