Dublin Airport (DUB), sits about 10 km north of the city centre as the city’s only airport. A new terminal is under construction to cope with the huge volume of traffic in and out of the capital. It’s easy enough to navigate on arrival and there are plenty of taxis and direct coaches to College Green (near Trinity College), and to a number of the bigger hotels, leaving every 15 minutes.
Dublin by train means using one of two train stations: Connolly Station on the north side’s Amien Street and Heuston Station to the west of the city at Islandbridge. Intercity trains go to the north (including Belfast) and west of the country from Connolly. Trains from Heuston go to Galway in the west and to routes in the southern half of Ireland.
Bus Éireann is the largest service provider for buses between regional areas and the capital. All buses leave and arrive at the central bus station, Busáras at Store Street, in the city centre. There are a number of private (and usually cheaper) bus operators who run the same routes, such as Citylink.
Irish Ferries and Stena Line are the two ferry operators running into and out of the city from Holyhead in Wales. Each has about four crossings a day with choices of high-speed craft (110 minutes) available or a slower ferry that takes three hours and 15 minutes. It costs roughly 30 euros for a single fare per adult. Watch out, though: the high-speed ferry is weather dependent and won’t sail if it’s blustery.
As far as European cities go, Dublin transportation is still in the dark ages. The main way of getting around Dublin (if you’re not on shank’s mare) is by Dublin bus, although some routes are notoriously irregular and far from punctual—and only certain routes run late at night. You must have exact change or the driver will issue you a receipt that can be cashed in at their central office on O’Connell Street (we doubt many people bother).
Other means of Dublin transportation include the LUAS light rail—slightly more expensive and routes are limited. DART trains run along the coast from Howth on the north of the city to Greystones in the south. Cycling is probably the best way to get around and the Dublin bike rental scheme is hugely popular. You’ll need to register first with a credit card then you can pick up a bike at a number of parking stations (the first half hour is free and it’s dirt cheap thereafter) and drop it at another one near your destination.
There are two LUAS or light rail tramlines that serve the city from 5.30AM to 12.30AM (on weekdays, slightly fewer hours at weekends) every five minutes at peak times, every 15 minutes otherwise. One comes from the western suburb of Tallaght, via Heuston station to Connolly station, and the other runs from St Stephen’s Green south to Sandyford. In typical Irish fashion, the lines don’t connect.
You can hail a taxi on the street at any time (there are loads around) or queue at a designated taxi rank. Dublin taxis aren’t cheap. Fares start at 4.10 euros during the day and 4.45 euros at night (until 8AM) with a charge of roughly 1 euro per kilometer (1.35 euro at night) and there are added fees for booking a car, adding passengers, oversized baggage and taking a taxi on bank holidays. The taxi fare from the Dublin airport to the city centre is roughly 20 euros.
Unless you want to make a trip out of town you won’t need a car in Dublin. Driving in Dublin means difficult navigatation, for starters, with bumper-to-bumper traffic at rush hour, rule-breaking cyclists and plenty of one-way streets. Parking can be a challenge (even in car parks) and is costly (about 2.50 euros an hour).