Asiana Airlines is bringing forward its A380 service to New York JFK to May 28.
The South Korean carrier had been scheduled to introduce the superjumbo on the route two weeks later.
The service will initially operate three-times weekly on Tuesdays, Thursdays and Saturdays before turning daily on June 28, again two weeks ahead of schedule, reports airlineroute.net.
Outbound service OZ222 will depart Seoul Incheon at 1030 and land in New York at 1130, with return service OZ221 leaving New York at 1325 and landing in Seoul at 1635 the next day.
Asiana is also moving forward its B777-200ER service between Seoul and Los Angeles from July 14 to June 28.
The airline launched its inaugural long-haul A380 service to LAX last year.