The airline's Dubai head office will handle approaches and the process is understood to be at a very early stage.
Emirates currently uses a number of online agencies worldwide, including Lean Mean Fighting Machine in the UK. The agency was appointed in June this year and its position on the roster is understood to be unaffected.
The airline has also recently looked at its 40-strong roster of global advertising agencies.
Clare Vaughan-Davies, the head of interactive at Emirates, denied a global review was planned. "We are always talking to agencies but there is no specific review process taking place," she said.