MLE is Male Airport, serving Male, Maldives. The airport is on an island immediately adjacent to the island on which Male is located. The airport island is served by frequent (every 5-10 minutes) ferry service that costs US$1-2.
Getting from Male airport to the Hilton is, if I remember, approx. US$175-200 roundtrip by air. The hotel arranges this for you. Search previous posts in this forum for Hilton Maldives for more info.