The Bahraini Parliament has passed legislation banning alcohol throughout its international airport and on Gulf Air flights, Gulf Daily News reported.
If the proposal is approved by the Emir, Bahrain will partially follow neighbours Saudi Arabia and Kuwait, which are fully dry countries.
Alcohol is haram in Islam but Bahrain is known for its liberal alcohol rules, which attract many Saudis, who cross into the island kingdom via a causeway linking the states.
Airline officials reportedly oppose the ban, telling MPs Gulf Air already had stopped serving alcohol and removed alcohol advertising from onboard paraphernalia.
It is assumed the legislation would also apply to the sale of duty-free alcohol.