major cities and towns provide some kind of public transport, among them buses and taxis which implies making your way around in Portugal is not a difficulty.
Facts about pretty much all sorts of public transport in Portugal for example airlines, airports in Portugal, bus routes, driving maps and trains in Portugal are published here.
The tables beneath will give you more info on the travel choices to get around Portugal: Travel by rail, travel by air, and travel by bus and car.
Airports in Portugal
Public Transport in Portugal
Portuguese Public Transport Questions