Hainan Airlines launched two new services out of Shenzhen in recent days.
These are four-times-weekly Shenzhen-Dalian-Jiamusi service on 14 July, and thrice-weekly Shenzhen-Dalian-Tonghua service on 15 July, says the carrier.
Both services are operated using Boeing 737 aircraft.
FlightMaps Analytics shows that Hainan Airlines is the only operator on the Dalian-Jiamusi and Dalian-Tonghua routes. It also competes with China Southern Airlines and Shenzhen Airlines on the Shenzhen-Dalian route.