Actually TA......Hawarden is far more convenient for North Wales than LPL as it is located on the A55 trunk road which runs from one end of North Wales to the other....ie from the border at Chester all the way to Holyhead. LPL, while not geographically far from North Wales is not so handy as a journey to this airport involves either a trip up the Wirral to one of the Mersey tunnels and through Liverpool City Centre or along the M56 to Runcorn and over the bridge. Journey time by road Wrexham to Hawarden 20 mins, Wxm to LPL at least 1 hour.
Also.....if you park at LPL, what are the chances of your car still being there on your return?