The entire route parallels Interstate 10 (I-10), which is located an average of about 1.5 miles (2.4 km) to the north and continues eastward toward Baton Rouge, the state capital.

Directly opposite Johnston Street, LA 94 proceeds northeast on Louisiana Avenue as an undivided four-lane highway.

[2][3][4] Shortly afterward, LA 94 turns east onto Carmel Drive opposite the Lafayette City Park, becoming an undivided two-lane highway.

(Westbound traffic from Breaux Bridge following the I-10 alternate route is directed to turn north from Carmel Drive onto Louisiana Avenue to rejoin the interstate.)

Narrowing again to two lanes, LA 94 continues northeast for 1.0 mile (1.6 km) where it crosses a bridge over Bayou Tortue and enters St. Martin Parish.

[2][3][4] LA 94 heads northeast through rural St. Martin Parish for 2.6 miles (4.2 km) before entering the city of Breaux Bridge, where it becomes known as West Mills Avenue.

The surroundings remain largely rural, transitioning to scattered light industrial and commercial services after the route cross the Louisiana and Delta Railroad (LDRR) line.

[2] In the original Louisiana Highway system in use between 1921 and 1955, the modern LA 94 made up the northern portion of State Route 43.

[12][13] LA 94 was created with the 1955 Louisiana Highway renumbering following the former State Route 43 from Lafayette eastward to Breaux Bridge.

More recently, East Simcoe Street was returned to local control, and the western terminus of LA 94 was moved again to its present location.