Korean Air has expanded its codesharing partnership with KLM Royal Dutch Airlines.
Starting this month, KLM has placed its code on Korean Air's daily Seoul Incheon-Fukuoka and Incheon-Sapporo services.
In addition, Vietnam Airlines will place its code on Korean Air's twice weekly Seoul Incheon-Danang service in late March.
Korean Air will also in March increase the frequency of its Seoul Incheon-Chiang Mai service from twice weekly to daily. The service will be operated using Boeing 737s.