Korean Air Lines (KAL) plans to launch a daily Tokyo Narita-Honolulu service on 31 March, using Airbus A330-300 aircraft.
This will replace the carrier's Tokyo Narita-Los Angeles service, which has the same frequency, says an airline official.
The carrier will add a daily service to its Tokyo Narita to Busan and Seoul Incheon routes, increasing their frequencies to twice and five times daily respectively, starting 31 March.
KAL will suspend its twice weekly Seoul Incheon-Cairo service on 2 March, and expects to resume the service in September.
It also suspended its Seoul Incheon-London Gatwick service since 12 January.
"No further decision has been made so far [on the route to London Gatwick] and we will keep watching the market situation," adds the official.
Innovata schedules show that KAL competes with carriers such as Japan Airlines on the routes from Tokyo Narita to Los Angeles, Busan and Seoul. The two carriers will also compete on the Tokyo Narita-Honolulu route.