China Eastern Airlines' net profit for the third quarter of 2012 declined by 20.4% to CNY2.6 billion ($410 million), compared with the same period last year.
Revenue for the quarter to 30 September increased by 2.8% to CNY25.1 billion, while its operating profit fell by 20.4% to CNY2.5 billion.
For the first nine months of the year, the carrier's net profit fell by 37% to CNY3.6 billion.
China Eastern's revenue rose by 3.6% to CNY65.5 billion, while its operating profit declined by 52.7% to CNY2.5 billion for the nine months.
The company's cash and cash equivalents amounted to CNY5.5 billion at the end of the period.