Singapore Airlines Ltd. and Korean Airlines recently posted quarterly losses, forcing both to rethink schedules and adjust aircraft deployment to boost profits. 新加坡航空公司(SingaporeAirlinesLtd.)和大韩航空(KoreanAirlines)前不久也公布了季度亏损,因此均不得不为提高利润而重新考虑航班安排并调整飞机调度问题。