Dnata's catering operations in the two cities are expected to create a total of 250 new, direct jobs with the company over the next 18 months.
Robin Padgett, divisional senior vice president for Dnata's catering division, said: "We are thrilled to be expanding our catering footprint in the United States by establishing operations at two more major airports.
"Passenger expectations continue to increase as global travel becomes more accessible and travellers experience the varied levels of service on offer. We pride ourselves on providing five-star catering services to our airline customers, ensuring an excellent dining experience for their passengers on board.
"We continue to invest in our operations and team in the United States to deliver on our ambitious goals and become a major player in this strategic market."
Dnata's new facility in Boston complements the company's existing operations in New York on the East Coast of the United States. At full capacity the facility will operate with a team of 150 catering professionals, supplying up to 12,500 meals a day. dnata already serves three airlines from Massachusetts' capital.
As its first catering centre on the West Coast of the country, Dnata's new facility in Los Angeles creates up to 100 jobs with the company and has a capacity of 10,000 meals a day. dnata's launch customer in Los Angeles is Qantas.
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