Asiana Airlines will raise its Seoul Incheon-Hanoi service on 15 May, after launching a Seoul Incheon-Jinan service on 2 May.
The Seoul Incheon-Hanoi service will increase to twice daily, up from 11 times weekly. Meanwhile, the Seoul Incheon-Jinan service is operated twice weekly, using Airbus A321s, the airline says.
In addition, Asiana will begin to codeshare with SriLankan Airlines on 12 May.
SriLankan will place its code on Asiana-operated Tokyo Narita-Seoul Incheon service, while the Korean carrier will place its code on the Colombo-Tokyo Narita service operated by SriLankan.
FlightMaps Analytics shows that Asiana competes with Korean Air on the Seoul Incheon to Hanoi and Jinan routes.