Ethiopian Airlines chief executive officer Tewolde Gebremariam told The Associated Press that the company expects FAA approval within a few days.
The Boeing 787 Dreamliners have been grounded since January because of a risk of fire from the plane's lithium batteries.
United Airlines earlier this month put its grounded Boeing 787s back in its flight schedule. United has a 787 scheduled to fly starting May 31.
Boeing Co. has proposed a fix for the 787's batteries, but it needs approval from the FAA.
MORE HBJ HEADLINES
Brexit vote slams world, U.S. financial markets Yellenís Fed to play long game dealing with Brexit fallout House Speaker Ryan proposes simpler tax code Maine governorís wife gets waitressing job Global markets in tailspin after British vote to exit EU Stocks crash as UK vote to quit EU shocks investors