Lufthansa has announced an additional delay to the deployment of the A380 to Seoul, South Korea and the 747-8i to Boston.
In the latest update, it now appears that the A380 will begin to fly between Frankfurt and Seoul on May 14. The 747-8i is now set to appear on May 15 for flights between Frankfurt and Boston (LH422/LH423).
Tentatively, there is also a one time 747-8i flight between Frankfurt and Boston on May 8 (LH422/423).
