Delta Air Lines and Korean Air, partners for over 20 years, have signed a joint venture agreement that will allow the SkyTeam members to coordinate schedules and pricing, jointly sell and market flights, and share revenues and costs between South Korea and the USA.
"Today's relationship will allow our two companies to fully integrate from a customer standpoint," Ed Bastian, chief executive of Delta, said.
With the partnership, Delta passengers will have access to 80 destinations in Asia beyond Korean Air's Seoul Incheon hub, he said, adding that the pact would not impact the carrier's relationship with China Eastern Airlines.
"The synergies will be good for our customers, our companies and our countries," said YH Cho, Korean Air chairman.
"Korean Air will benefit from expanded access to the US market on Delta under the agreement."
Delta currently serves Seoul from Atlanta, Detroit and Seattle Tacoma.
A new service to Seoul Incheon is also on the cards. Korean Air serves 13 cities in North America, including Atlanta, Los Angeles and New York John F Kennedy.