Sri Lanka nationals and dual citizens abroad who can afford paid quarantine are allowed to use commercial flights to return to the island, without waiting in a Foreign Ministry list for free quarantine.

From December 26, the Foreign Ministry will continue to arrange repatriation flights for migrant workers, students, patients, short term visa holders, government and military officers.

However Sri Lanka nationals and dual citizens who can pay for quarantine could come on a commercial flight, if they can arrange paid quarantine at a designated hotel.

https://economynext.com/sri-lanka-nationals-dual-citizens-allowed-back-on-commercial-flights-paid-covid-19-quarantine-77110/