Please tell me when Changchun will go to Hainan.

I went to Hainan on New Year's Day last year and went with a group! I read the newspaper a few days ago, and now I only need 2050 yuan for four flights with the group. I don't think it's appropriate to go by myself! Although it's too tiring to join the group, if you haven't been there before, it's better to travel with the group! If you've been there before, and this time you're just going to have a rest and vacation, go by yourself! But it will be expensive! One more thing, Changchun has no direct flights to Haikou or Sanya. If you book a flight at 65438+1October 20th, the lowest discounts for Changchun-Beijing-Sanya, Changchun-Beijing, 670 yuan and Beijing-Sanya are all full-price tickets at 23 10 yuan, excluding tax!