
The premier did not reveal what would be the main propose for the trip.
Prayut recounted that he and US President Barack Obama greeted each other and the US president congratulated him.
Prayut met Obama last time at Asia Pacific Economics forum in Beijing last November.
However, Prayut played down the significance of the meeting in New York, saying it was a just diplomatic protocol and he had no special issues to discuss with Obama apart from talking about friendly bilateral ties as the two countries have been long time friends.
Prayut previously revealed that he had forged an understanding with the US government and American business associations, when he met some of their representatives during the sideline events.
“After my return from UNGA, my heart is not bigger than it always is” said Prayut, adding that he made the US trip for the country.
“I always work for the country and have confidence in my work. I say what I do, and never talk bad about the country”, he said.
Prayut said he would also make a series of trips to campaign for a seat in the UN Security Council.
During the press conference, Prayut said he had an opportunity to clarify to UN Secretary General Ban Ki-moon about the summons of the government's opponents that the UN chief was concerned about.
He told Ban Ki-moon that the summoned people were called just for talks and warnings, and no tortures were carried out against them at all.
Asked whether international community would understand Thailand better, he said, it’s up to them. He just tried to show them his sincerity.