Autoroute 540 is a short spur highway, connecting Route 138 to Autoroute 73 and linking the Jean Lesage International Airport with the Pierre Laporte Bridge.

It is also known as Autoroute Duplessis, honouring former premier Maurice Duplessis.

Exit numbers on Autoroute 540 are numbered from north to south, unlike other Autoroutes which are numbered from south to north.

The entire route is located in Québec City, Québec TE.

This Quebec road, road transport or highway-related article is a stub.