Malaysia Airlines swung to a third-quarter net loss of MYR477.6 million ringgit (USD$149.98 million) from a profit of MYR233.2 million a year ago, due to higher fuel costs and an unrealised foreign-exchange loss.
Revenue was 4.9 percent higher at MYR3.6 billion ringgit from a year earlier, it said in a stock exchange filing.
The airline said its fourth-quarter operational results would be worse than the third quarter as high fuel prices and a weak economic outlook in Europe hurt its business.
"Management is embarking on a significant network rationalisation exercise to withdraw structurally weak, loss-making routes, and to possibly embark on new higher yielding routes focusing on Asia," it said in a statement.
"We expect the full impact of these initiatives to begin bearing fruit in 2012."