What Sharia-Compliant airline is the national flag carrier of Brunei Darussalam?
Rayani Air:  It was the first Sharia-Compliant airline in Malaysia and the fourth such airline in the world, after Royal Brunei Airlines (RBA), Saudi Arabian Airlines and Iran Air. Royal Brunei Airlines: Royal Brunei Airlines Sdn Bhd (Malay: "Penerbangan DiRaja Brunei" , Jawi: ڤنربڠن دراج بروني), or RB, is the national flag carrier airline of Brunei Darussalam, headquartered in the RB Plaza in Bandar Seri Begawan.
Royal Brunei Airlines