The airline currently operates daily flights from the emirate to the island on its Boeing 777-300ER, but will move to operating twice-daily flights on its A380 aircraft from 1 July, providing additional connecting options for the UK market.
Emirates said "in line with rising demand", it would first scale up operations from daily to nine weekly flights between 9 April and the end of June, before moving up to double daily flights from July.
Emirates’ second daily flight will provide an important boost to tourism to the Indian Ocean destination which has now relaxed entry restrictions for travellers.