Korean Air plans to raise flight frequencies on several routes starting 28 October.
The SkyTeam alliance member will double its Seoul Incheon-Guam service to twice daily and the route will be operated using Airbus A330-200 and Boeing 777-200 aircraft, says its spokeswoman.
The airline will add two services on its existing Seoul Incheon-Auckland and Seoul Incheon-Taipei Taoyuan routes, increasing flight frequencies to daily and twice daily respectively.
Korean Air plans to resume services from Seoul Incheon to St Petersburg and Cairo, and will operate both routes twice weekly. It will resume the St Petersburg service on 8 December, but has yet to announce a date for the Cairo service.
The carrier will also resume its Busan-Manila service on 21 December and operate 737-900 aircraft on the route.
The airline will decrease the frequency of its Seoul Incheon-Toronto service from five to four times weekly, adds the spokeswoman.