The A6539 is a link road near the Yorkshire town of Castleford.
The road starts at a roundabout on the A656 in Glasshoughton. It heads west along the original line of the A639 and meets the present route of that road at the next roundabout. There's a short multiplex past Asda and the two roads split at another roundabout.
We now continue west along the modern Premier Way and soon cross over the Leeds to Pontefract railway line. We continue to a roundabout on the B6421 and multiplex with that road under the M1 to a further roundabout. The A6539 then continues southwestwards. A roundabout provides access to a business park then we end at the following roundabout on the A655.