Denbigh lost its own railway station when the Vale of Clwyd line closed in the 1960s, so the nearest mainline rail access today is Rhyl railway station, on the North Wales Coast Line, from where onward bus connections run into the Vale of Clwyd.
By bus, Denbigh is served by a number of routes, including the TrawsCymru T51, which connects the town to Rhyl and Wrexham, and the TrawsCymru T8, which runs to Chester and Corwen. Local routes 14D, F14, 14M, 52 and 71A also serve the town and surrounding area.
Transport for Wales also operates two fflecsi on-demand minibus services covering Denbigh: Denbigh 66, which serves the market town itself, and Denbigh 77, which connects rural communities to the south-west, north-west and north-east of the town, including St Asaph. Fares are inexpensive — adult singles typically start from £1.50, with reduced fares for children and young people — and can be paid via the fflecsi app or on board by contactless or cash.
Denbigh sits just off the A525 and A543, with the A55 North Wales Expressway a short drive to the north giving fast road access to Chester, the Wirral and North West England to the east, and Bangor and Anglesey to the west. The nearest mainline railway stations are at Rhyl and Chester, both connected to Denbigh by regular bus services, since the town's own railway — the old Vale of Clwyd line — closed to passengers back in 1955.
For visitors flying in, Liverpool John Lennon and Manchester airports are both within a couple of hours' drive, making Denbigh a realistic base for a North Wales trip even for visitors arriving from further afield. Once in the area, a car is the most flexible way to explore the wider Vale of Clwyd and Clwydian Range, though regional bus services do link Denbigh to Ruthin, St Asaph and Rhyl.