To see the best (and worst) times to visit, please read our reviews of our recommended places to stay
Note: flight, boat, train and bus timetables change constantly, and airlines come and go, so please do not rely solely on this information for your travel planning. Check with relevant companies, or a flight search engine like Skyscanner, first.
From the UK to Dublin:
Aer Lingus flies to Dublin from London Heathrow, Cardiff, Birmingham, Liverpool, Manchester, Edinburgh and Glasgow. Don't assume that it will be more expensive than Ryanair.
Ryanair flies to Dublin from London (Luton, Stansted and Gatwick), Aberdeen, Birmingham, Bournemouth, Bristol, East Midlands, Edinburgh, Glasgow, Leeds, Liverpool, Manchester and Newcastle.
BMI flies to Dublin from London Heathrow.
City Jet flies to Dublin from London City.
From the UK to Londonderry:
Ryanair flies to Londonderry from Bimingham, London (Luton & Stansted), Liverpool and Glasgow Prestwick.
From Europe to Dublin:
Aer Lingus flies to Dublin from almost all European capitals, and many other cities besides (currently from 43 different European cities).
Ryanair flies to Dublin from about 20 European cities, some of them quite unexpected (Karlsruhe, Lodz etc).
From the UK to Cork:
Aer Lingus flies to Cork from Glasgow, Edinburgh, Manchester, Birmingham, Bristol and London Heathrow.
Ryanair flies to Cork from Liverpool, London Stansted and London Gatwick.
From Europe to Cork:
Aer Lingus flies to Cork from Amsterdam, Brussels, Paris, Munich, Nice, Rome, Barcelona, Malaga, Faro, Lisbon, Tenerife and Lanzarote.
Ryanair flies to Cork from Faro, Malaga, Palma, Girona, Milan, Krakow and Warsaw.
Although the traffic is terrible in the Dublin city environs, the relative lack of an integrated transport network means you'll be getting taxis to get about. The buses are pretty good although they do get snarled up in the traffic. From the airport there is a special blue Airport bus which takes you into the heart of the city centre and the driver will help you with your luggage. The new light urban rail system, the LUAS, is very popular and easy to navigate, however there are only a couple of lines.
The vast majority will hire a car to see all corners of the Emerald Isle - see our car rental recommendations.
There is a reasonable train network - for example it is only 2 hours from Dublin to Belfast; check out Irish Rail for details.