The decision extends an eight-year relationship between Singapore Airlines and MEC and follows a pitch-process held in south-east Asia which involved contributions from local markets.
Agencies knocked out at an earlier stage of the process are Dentsu Media and Carat. Starcom pulled out of the pitch due to a conflict with key client Emirates.
Singapore Airlines' vice-president of public affairs Stephen Forshaw confirmed the reappointment, adding "we look forward to continuing our partnership".
According to The Nielsen Company, Singapore Airlines spent £3.4m on media in the UK in the 12 months to 30 November 2008, including £1.5m on outdoor and £1.1m on press.
This article was first published on mediaweek.co.uk