The road starts on the A712 just north of that road's junction with the A75 and heads northwest along the largely straight New Galloway Road. The road soon becomes built-up as it goes through Creebridge and Minnigaff before crossing the River Cree to enter Newton Stewart.
The A714 immediately comes in from the right and TOTSOs, with our road continuing onto the southward A714, a relic of when the through route was the A75. We multiplex south through town for half a mile, through the town centre and out the other side, although we remain built-up. By the Bruce Hotel the B7079 regains its number by turning right into Station Road; this is then followed west through the suburbs. Presently - and without warning - the road ahead is blocked and the B7079 ends, with traffic forced to turn right into the unclassified St Couan's Road. When the bypass was opened there was a junction with the B7079 but this was severed in the 2000s; our road, however, retains its number west of the A714.