Suitland Road continues west into Washington to an intersection with Alabama Avenue in the Fairfax Village neighborhood.

MD 218 heads southeast as a two-lane undivided road between apartment complexes and crosses Oxon Run.

The state highway reaches its eastern terminus in the center of Suitland at MD 458 (Silver Hill Road).

Suitland Road continues southeast as a county highway through a diamond interchange with Suitland Parkway, the town of Morningside, and a half-diamond interchange with Interstate 95 (I-95)/I-495 (Capital Beltway) to its terminus at MD 337 (Allentown Road) on the edge of Andrews Air Force Base.

[5] The first round of widening of MD 218 took place when a pair of 3.5-foot-wide (1.1 m) bituminous shoulders were added from the District to the east end of the cemetery grounds between 1938 and 1940 and from there to Suitland between 1940 and 1942.