The carrier said it will operate a Boeing 737-800, which will depart Incheon Tuesdays, Wednesdays, Fridays and Saturdays and return the same day.
"We will continue to increase our routes to China, in order to offer our customers more travel options between China and Korea and to provide faster and more efficient access to North America, Europe, Oceania, and Japan via our Incheon hub," Korean Air president J.H. Lee said.
With the Guangzhou service, Korean Air said it now serves 20 destinations in China and 97 destinations worldwide.
Want more analysis like this? CAPA Membership gives you access to all news and analysis on the site, along with access to many areas of our comprehensive databases and toolsets.
Find out more and take a free trial.