The carrier has announced a new US route for next year
Aer Lingus has announced it plans to create more than 900 jobs over the next three years.
The carrier says over 100 will come on-stream in 2018, with a further 800 to be created across 2019 and 2020.
The IAG-owned Irish airline has announced its 2018 Dublin summer schedule which features a new route to Philadelphia in the US.
This service will operate four times a week direct from Dublin from March 25th next year.
The expansion comes on the back of Aer Lingus taking delivery of four new long haul aircraft in the last 24 months.
Aer Lingus says next summer will mark its largest ever long haul programme, with 177,000 additional seats across the Atlantic over the season.
Its total capacity to and from North America for 2018 will reach 2.75 million seats.
Speaking in Dublin, Aer Lingus chief operating officer Mike Rutter said: "We are delighted to announce Philadelphia as our new route for summer 2018.
"We are proud to continue to deliver on our promise to grow our transatlantic network and further strengthen Dublin Airport as a leading gateway to North America.
"We are delighted to be delivering on the growth opportunities that being part of International Airlines Group (IAG) has presented over the past two years."