Aer Lingus CEO Sean Doyle said in a blog post that the airline's new Airbus A321 NEO LR aircraft that will begin arriving in 2019 will "open new North Atlantic growth opportunities for Aer Lingus."
New North American routes grew the airline's capacity by 10% in 2018.
Cities in Texas, Colorado and Canada - as well as Las Vegas - are known to be in active consideration for 2019 and beyond.