Is this bag OK as hand luggage?

这个包可以随身带上飞机吗?

Can I take this through security?

这个可以通过安检吗?

Can I have a window seat, please?

可以给我一个靠窗的位子吗?

Can I have an aisle¹ seat, please?

可以给我一个靠近过道的位子吗?

Which gate do I need to board from?

我应该在几号登机口登机?

When do I need to board?

什么时间开始登机?

Is my flight on time?

我乘坐的飞机会准点起飞吗?