DARWIN, Australia — As President Obama arrived in Bali, Indonesia, on Thursday for the final leg of his Asia Pacific tour, the White House announced several private trade deals in the region that could total $25 billion and support 127,000 jobs in the United States.

A deal by Boeing to sell 240 airplanes to Lion Air in Indonesia for $21.7 billion constitutes the lion’s share of the announcement, the White House said in a news release.

Obama has been making the case that opening trade channels in the fast-developing Asia Pacific region will help boost American exports — and help create jobs back home.

During an economic summit in Hawaii last weekend, Obama announced that the United States and eight other countries had reached agreement on the “broad outlines” of the Trans-Pacific Partnership trade pact.

Deals like the one Boeing is signing with Lion “underpin the expanding strategic partnership between the U.S. and the Asia-Pacific, contributing to economic growth and development,” the White House’s news release stated.

Obama will attend a signing ceremony for the deal on Friday in Bali, where he also is scheduled to participate in two regional summits.

Boeing also will sell airplanes to a company in Singapore, and General Motors will sell airplane engines to an Indonesian firm, the White House said