Singapore Airlines And Aegean Airlines Sign Codeshare Agreement 19 November 2012 (Joint Release With Aegean Airlines) - From 1 December 2012, Singapore Airlines customers will be able to fly to the Greek cities of Athens and Thessaloniki through a codeshare agreement with Star Alliance partner Aegean Airlines. Under the agreement, SIA will add its ‘SQ’ code to Aegean-operated flights serving the Greek capital Athens from Frankfurt, London, Milan and Munich, as well as to flights serving Greece’s second-largest city Thessaloniki from Frankfurt and Munich. On a reciprocal basis, Aegean will add its ‘A3’ code to SIA-operated flights serving Singapore from Frankfurt, Milan and Munich, and flights beyond Singapore to Melbourne and Sydney. Aegean’s codeshare on SIA-operated flights will commence once regulatory approvals have been obtained. .... Customers are advised to check singaporeair.com for updates to flight schedules.