American Airlines and British Airways have begun work on the expansion of Terminal 8 at New York John F. Kennedy, improvements that will allow the latter carrier to move to the facility in two years.

Work on the $344 million expansion began in December, and it is the first step in a larger $13 billion redevelopment of JFK that is due for completion in 2025. The project adds 70,400 square feet to Terminal 8 including five new wide-body gates.