The Sabah government says the move will promote local economy.
Pesta Kaamatan disambut di Sabah pada 30 dan 31 Mei, sementara Gawai bermula pada 31 Mei dan berakhir pada 1 Jun.
However, Anthony Loke says, to reduce airfares, a pilot project will be carried out to increase flights by at least 20% during three main festive seasons.
Joseph Pairin Kitingan, the Huguan Siou, is, for the first time in decades, missing from the festival.
The promotion, which runs until May 31, is being held in conjunction with Kaamatan or Harvest Festival.
Civil servants born in East Malaysia and Labuan can now take a day of unrecorded leave to celebrate these festivals.
The Unduk Ngadau, given in conjunction with the annual Sabah harvest festival, is inspired by Huminodun, who sacrificed herself to end famine in the land.
The webfilm, launched in celebration of the harvest festivals in Sabah and Sarawak, have been shared on Facebook over 1,400 times since its launch yesterday.