How much does it cost to travel from Ningbo to Hawaii?

Shanghai flies directly to Honour Lu Lu badminton (Oahu Island), then transfers to Hawaii Island (Big Island), and reserves 3 days to see active volcanoes, see the Milky Way and surf on the Big Island. Then fly to Maui for 2 days and feel the Hana Highway. Then fly to Oahu for two days on the sixth day, and then fly back to Shanghai. The main interesting scenic spots in Hawaii are all on Hawaii Island (Big Island). The ticket price is different at any time, roughly according to the round-trip 6000. Hotel $ 150/ day *7= 1050*7=7350 RMB. The whole journey is about 20,000/person. Please ask me if you have any questions. I live in Hawaii.