The new route from Manchester to New York JFK begins on 1 December, with Orlando from 11 December. Rates are for bookings until 29 September for travel from 1 November 2021 until 31 March 2022.
The fare is also valid on US services from Dublin, with connections from seven UK airports, including Heathrow, Gatwick and Birmingham.
Dublin services are operating to JFK, Newark, Boston, Chicago, Washington, Orlando, San Francisco, Los Angeles and Toronto, and offer US Customs and Immigration pre-clearance in Dublin.
Susanne Carberry, Aer Lingus chief customer officer, said: “Aer Lingus is delighted to finally be reuniting the UK, Europe and the United States. We’re excited to once again connect families, friends and businesses on both sides of the Atlantic."
The airline’s new online travel support tool offers latest tailored Covid information based on specific circumstances including vaccination status, return travel and flight connection requirements.