American Airlines and Aer Lingus have entered a codeshare alliance with an aim to enhance connectivity between the US and Europe for passengers.

Under the codeshare agreement, American Airlines will put its code on Aer Lingus flights operating between London Heathrow (LHR) and Dublin (DUB) airports.

Passengers will be able to opt for codeshare flights on Aer Lingus from Dublin to Amsterdam, Birmingham, London Gatwick, Manchester, as well as from London Heathrow to Belfast City, Northern Ireland, Cork, Shannon and more.

In addition, those travelling with Aer Lingus will have the option to choose codeshare travel on American Airlines flights from Chicago O’Hare to Albuquerque, New Mexico, Nashville, Dallas-Fort Worth, Los Angeles and more.

Aer Lingus chief strategy and planning officer Reid Moody 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 (CBP) 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.”

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Both airlines intend to expand this codeshare agreement in future.

Last year, Aer Lingus joined the Atlantic Joint Business (AJB) between American, British Airways, Iberia and Finnair.

In September last year, American Airlines partnered with Bill Gates’s Breakthrough Energy Catalyst by contributing $100m to a collaborative effort for supporting clean technologies such as sustainable aviation fuel.

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