Erekat, 62, who has led peace negotiations with Israel over the past 20 years, underwent the surgery at the Inova Fairfax Hospital in Northern Virginia.
He has been suffering from pulmonary fibrosis, which is characterized by the development of scars in lung tissue, which makes it difficult for them to function properly.
The disease manifests itself in shortness of breath, coughing and loss of the ability of the lungs to transfer oxygen to the body. He was diagnosed more than a year ago.
Erekat had been treated with drugs, but a few months ago, medication stopped being effective and his condition worsened.
He began medical treatment in one of Israel's hospitals, but doctors made it clear to him that he had to undergo a lung transplant to survive. He was consequently put on the waiting list for a lung transplant in Israel, Jordan and the United States.