Aer Lingus and American Airlines have launched a codeshare agreement for flights between the US and Ireland and the UK.

The move follows the addition of Aer Lingus to the Atlantic Joint Business (AJB) between American Airlines, British Airways, Iberia and Finnair last year.

Aer Lingus customers will be able to book codeshare travel with AA from Chicago to Alburquerque, Nashville, Dallas-Fort Worth, Los Angeles, Seattle, San Francisco, San Jose and Tuscon.

The AA code will also be available on Aer Lingus flights from Dublin to Heathrow, Amsterdam, Birmingham, Gatwick and Manchester, and from Heathrow to Belfast City, Cork and Shannon.

The airlines said further expansion of the codeshare was planned “in the near future”.

Reid Moody, Aer Lingus chief strategy and planning officer, said: “We are delighted that through the codeshare agreement with American Airlines, Aer Lingus customers will be able to avail of greater connectivity options and more seamless travel between the US and Europe via our Dublin hub, which also has the added benefit of US Customs & Border Protection pre-clearance located in Dublin.

“Last week’s decision by the Irish Government to remove pre-departure Covid-19 test requirements for double-vaccinated passengers is more welcome news for those planning to travel.

“We look forward to extending our warm Aer Lingus welcome to more and more customers in the months ahead.”

Anmol Bhargava, American Airlines vice-president of alliances, said: “We are excited to extend our relationship with our newest joint business partner, Aer Lingus, with this codeshare agreement.

“Through our transatlantic joint business, customers have more choices to key destinations in Europe and now, Ireland.”