Cardiff is the main airport and is served by many low cost airlines with flights to most other UK airports as well as many European destinations.
Trains & Buses
The main towns of Mid Wales can be reached by train such as Chirk on the Chester-Shrewsbury line, and Knighton, Llandrindod Wells, and Llangammarch Wells on the train which heads to Swansea from Shropshire. Towns such as Hay-on-Wye, Brecon and Llanidloes can only be reached by bus. If you’re in no rush, the bus services will take you to places you’d never see following the normal tourist trail.
The UK’s train network isn’t as fast, cheap or efficient as in Europe but it is still quicker than driving and more convenient than flying — as long as you’re travelling between major transport hubs. See National Rail for timetable information and ticket prices.
It’s a good idea to hire a car and drive around Wales to really appreciate the green countryside, national parks and wild coastline. To drive in Wales you need a current driving licence. The AA has very useful information on distances and route-planning. Bring a map!