If you want to travel to Dublin, you can do it easily with low cost airlines. From Alicante or San Javier airports, you will find prices for all budgets.
Once we were in Dublin airport, we took a bus to Castleknock, it took us 20 or 25 minutes, it is a very short time, but if you want to go to the city centre, it is going to take you the same time.
There is a very good public transport network to get to the downtown but the last train or bus during the week is at 23.30 so if you want to stay later in the down town, you have to take a taxi, but it is not very expensive, about six Euros per head.
The city isn’t very big so you can choice another option; to ride a bike, you can do your day more enjoyable. You can rent a bike from one point of the city and leave it in another without spending a lot of time.
If you prefer to have a guide tour in a tourist bus, you can take it in central points of the city, but it will be a little more expensive.
We didn’t use the tram, but it is also another way of getting around the city and with similar price that the bus.
With only one ticket we could go by bus or train to other villages or move to the coast to enjoy the famous cliffs. The transport ticket prices can vary, it depends on if it is only for a trip, a day, a week or even a month.
Ireland generally has very good transport connection for easy travel around the country and at the airport you can find a lot of destinations in different places of the world without difficulty.
Soraya García García