Situated just north of Dublin City, Dublin Airport (Aerfort Bhaile Atha Cliath in Irish) was built on the site of an old royal Air Force base at Collinstown. After the Irish Free State was established, Baldonnel Aerodrome was the airport of choice. It was used by Iona National Airways (1931) and Aer Lingus (1935) before transferring to the Collinstown site in 1940. Today Baldonnel Aerodrome is home to the Irish Army