“The loss in the third quarter can be attributed to higher oil prices and a weaker local currency,” the carrier said in a regulatory filing cited by Yonhap news agency. Sales climbed 21 per cent year over year to KRW1.17 trillion, but fuel costs surged 83.2 per cent to KRW470.3 billion and currency-related losses rose 59-fold to KRW112.6 billion as the Won fell 13 per cent during the three-month period.