Korean Air plans to launch a Busan-Nanjing service, and raise frequencies of services to North America, Japan and China as part of its 2013 summer schedule.
It will operate a four times weekly Busan-Nanjing service starting 31 March, says the SkyTeam alliance member.
The airline will also add two weekly services on routes from Seoul Incheon to Seattle, Toronto and Okayama. Frequencies to Seattle and Toronto will be raised to daily, while the Okayama route will be served nine times weekly.
Services on the Seoul Incheon-Las Vegas route will increase from three to four times weekly, while the Seoul Incheon-Komatsu frequency will be raised from four to five times weekly. The Cheongju-Hangzhou service, meanwhile, will be raised to four times weekly, up from once weekly.
Korean Air will also terminate three weekly services on routes from Seoul Incheon to Jakarta and Ho Chi Minh City, decreasing their frequencies to daily and four times weekly respectively, it adds.