The B5377 is a short link road on the northern side of the Fylde. It was originally unclassified but gained its number in the late 1920s.
Starting at a sharp bend on the A588 in Preesall Park the B5377 heads north along Park Lane. Although going through open fields the road also passes a number of houses so cannot be called rural. It's not long before we reach Preesall itself. The road briefly becomes very narrow in the village centre. After the fields return we cross a bridge over the long-gone Knott End Railway above Preesall station. As the terrain here is more-or-less flat the bridge is rather long.
The road descends to reach the outskirts of Knott End-on-Sea, entering town along Park Lane. It ends at a T-junction on the B5270 to the east of the town centre.