(Adds detail on timeline of talks, issues to be discussed) NEW YORK/WASHINGTON, Sept 22 (Reuters) - The United States wants to strike a deal that lets U.S. airlines schedule flights to Cuba as soon as possible, a State Department official said, ahead of the first aviation talks since March. Delegations will convene in Havana on Sept. 28-29 as the countries inch toward normal relations after more than half a century of hostility that followed Cuba's 1959 revolution. The two nations restored diplomatic ties and reopened embassies this summer. Both sides would like to reach an agreement, the official said, which could benefit U.S. carriers such as American Airlines Group Inc and JetBlue Airways Corp expecting demand and more revenue from Americans wishing to visit the communist-ruled island. Key issues the sides must discuss are... More