International Airport
Cardiff Airport https://www.cardiff-airport.com/
Cardiff Airport is the only airport in Wales that offers international scheduled flights and is also served by scheduled, low-fare, business and charter carriers. It also supports corporate and general aviation.
Train
There are currently four main train companies operating in Wales. They include:
Buses
TrawsCymru long distance buses are an ideal way of exploring Wales.
The TrawsCymru Weekend Saver Return Ticket covers a return journey, on any two days, between the first bus on a Friday and the last bus on a Monday. This offer is available on selected routes across Wales.
Bus services for walkers and cyclists operate in each of the Welsh National Parks: the Coastal Buses (Poppit Rocket, Strumble Shuttle, Celtic Coaster, Coastal Cruiser and Puffin Shuttle) in Pembrokeshire and the Snowdon Sherpa Buses in Snowdonia. They’re designed to reduce traffic in the parks.
https://www.pembrokeshire.gov.uk/bus-routes-and-timetables/bus-routes-list-coastal-buses
Coaches
National Express operates long-distance intercity coach services along the south coast from Cardiff and Swansea to Pembrokeshire; from Newtown to Aberystwyth on the west coast; and along the north coast from Prestatyn, Rhyl, Colwyn Bay and Llandudno to Bangor.
Megabus runs a low-cost coach service between Newport, Cardiff, Swansea, Carmarthen and Pembroke Dock.