With Ireland being a modestly sized island with an extensive and speedy train network and modern motorways connecting the main cities, there’s little need for too many internal flights. The only internal flights on the island of Ireland are the Dublin-Kerry route, which takes approximately 40 minutes, and flights to all three of the Aran Islands with Aer Arann. Flights to the Aran Islands leave from the very picturesque setting of Connemara Regional Airport with a journey time of approximately eight minutes. There are no flights between the islands themselves.
There are four international airports on the island of Ireland:
Belfast International Airport
City of Derry Airport
In addition, there are seven regional airports:
Ireland West Airport Knock
Belfast City (George Best) Airport
Connemara Regional Airport
Sligo Regional Airport is almost exclusively for charter or corporate flights and is not served by a regular carrier.
Visitors to Ireland will need their passport at all times when travelling internally on the island of Ireland.