We plan to be in Dublin for a few days without a car this summer. However, the morning of the third day we would like to rent a car and drive into Northern Ireland. At the end of the trip we want to return the car to the airport in Dublin.
Would it be better to pick the car up while we are in Dublin in the city center area or should we go back out to the airport to get the car and then head on to Northern Ireland? Which is better? Will we be charged more if we pick up in one location and return to a different location?