The evangelist was admitted to Mission Hospital in Asheville, North Carolina, in the early hours of Sunday morning.
"Mr Graham had a quick recovery and responded very well to his treatment," said Daniel Fertel, MD, Mission Hospital pulmonologist.
"Catching these types of pulmonary infections early is crucial for a fast recovery, as was the case for Mr Graham. Despite this illness he remains remarkably healthy for a 93-year-old man."
Mr Graham was able to receive visits from family and even watched the closing ceremony of the London 2012 Olympics during his stay in hospital.
"I am grateful for the exceptional care I received at Mission Hospital," he said.
"It is never easy going to the hospital, but the doctors and nurses here provided me with wonderful care.
"Mission Hospital employs a dedicated team of professionals that administered prompt treatment to restore my health and allow me to return home quickly."
"I am also grateful for the prayers and letters I received from people across the country and around the world during my short stay," Mr Graham continued.
"Such an outpouring of love and support is always a blessing but was especially appreciated during my hospitalisation."
Mr Graham's staff report that he will continue with his usual care and physical therapy at home.
Despite his age, Mr Graham continues to take an interest in the work of the ministry he founded, the Billy Graham Evangelistic Association, led by his son, Franklin Graham.
He is currently working on a book that brings together the main message of his seven decades of public ministry.