Singapore Airlines (SIA) and its regional subsidiary SilkAir have signed a codeshare agreement with Shenzhen Airlines.
The two Singapore carriers will place their code on the daily Shenzhen Airlines' Shenzhen-Singapore service. Shenzhen Airlines, meanwhile, will place its code on Silkair's daily Singapore-Shenzhen service.
Innovata schedules show that Tiger Airways is the only other carrier on the route.
Silkair and Tiger operate Airbus A320 family aircraft on the route, while Shenzhen Airlines operates Boeing 737-800s.