回复：

* in the event of long delays (two hours or more, depending on the distance of the flight), passengers must in every case be offered free meals and refreshments plus two free telephone calls, telex or fax messages, or emails;
* if the time of departure is deferred until the next day, passengers must also be offered hotel accommodation and transport between the airport and the place of accommodation;
* when the delay is five hours or longer, passengers may opt for reimbursement of the full cost of the ticket together with, when relevant, a return flight to the first point of departure.

发现这里有一段,但是又有个新问题,在我去机场前6小时收到QANTAS的短信,说航班延误2小时,然后2点准备进跑道起飞前又发现飞机有故障,所以又延误到6点半才起飞,请问下这个算4个半小时延误还是6个半小时延误呢?