According to local tourism agencies, a passenger plane of Air Koryo, the North's flag carrier, landed in the airport in Dalian on Thursday and returned to Pyongyang with nearly 70 people on board, Yonhap News Agency reported.
This marked the first North Korean airplane that had flown between the two cities since November 2006.
There will be such flights every Thursday and Sunday.
Li was seated next to North Korean leader Kim Jong-un during a military parade staged last week, and the North also hosted an art performance and banquet exclusively for Li and his delegation in an apparent bid to emphasize friendly ties between the two countries.
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