National carrier Air India tops when it comes to brand reputation, followed by low-cost carrier SpiceJet and Jet Airways. Among the international carriers, it is Singapore Airlines that leads the ranking, followed by Etihad and Emirates, says TRA (Trust Research Advisory) Research-BlueBytes in the ‘Most reputed aviation brands 2016’ report. Others in the list include Indigo, and GoAir, while other international airlines include Lufthansa, British Airways and Qatar Airways. The ranking is based on a brand’s reputation with a two-pronged approach of media analysis and a survey of consumer influencers and was conducted among 21 airline brands.