The whole journey from meilan airport to Hainan University is about 10.4 km. If you take a taxi, you can bargain 25-30 yuan. It depends on your eloquence. Haikou starting price 10 yuan. If you hit the meter, you can bargain directly according to what you just said.

Bus is cheaper: since everyone has to transfer, so be it:

Meilan airport takes bus No.21to any stop (Nanbei Fruit Market, Fengxiang Mountain Villa, Ding Cun Road, Provincial High Court, Hainan Normal University) and transfers to bus No.23 to reach Hainan University.

The fare is less than 10 yuan, but it's not bad to take a better car upstairs.