China Eastern Airlines plans to launch two new domestic services on 1 September.
It will start daily Changzhou-Shenzhen and Nanjing-Xian-Xining services, says the carrier.
The airline is using Airbus A320 aircraft on the two routes.
China Eastern also launched a four times weekly Taiyuan-Xining and daily Nanning-Kunming-Lhasa services on 10 and 15 August respectively. Both routes are operated using Boeing 737s.
Innovata schedules show that the carrier will compete with Shenzhen Airlines on the Changzhou-Shenzhen and Nanjing-Xian-Xining routes.