Is the flight delayed?航班延误了吗？

1.Is the flight delayed?航班延误了吗？

2.The flight will be put off.飞机要延误了。

3.Due to bad weather condition.因为不好的天气情况。

4.My flight has been delayed.我的航班延误了。

5.What's the cause of the delay?是什么原因导致的？