Hawaiian Airlines is trimming its Big Island schedule for Hilo and Kona by a total of three daily round-trip flights beginning next month.

The state’s dominant interisland carrier said today it is eliminating one evening round-trip flight per day (out of 15) to and from Hilo, and one evening and one morning round-trip per day (out of 23) to and from Kona.

“We are taking flights out of periods that have enough frequency to allow us to maintain the robust schedule of flying that our residents, in particular, expect,” Hawaiian spokeswoman Ann Botticelli said.

When the changes take effect, Hawaiian still will be flying 14 round trips between Honolulu and Hilo between 5 a.m. and 8:30 p.m. and 21 flights between Honolulu and Kona between 5 a.m. and 9:50 p.m.

“We have not seen operational disruption at our airports due to the volcano, and continue to encourage those who wish to visit Hawaii island to do so,” Botticelli said.