a safety device that holds passengers in their seats

What do you do first when you arrive at the airport?

The place where somebody comes to you. Usually at an airport

Before you can board your flight you have to go through...

It is the area where passengers board to the aircraft

the lowest class of traveling; economy tickets are the cheapest tickets

It is the area of entry into a Country, typically at the airport at which goods and cargo are searched for various reasons, such as ensuring persons are bringing in no illegal items etc

the place where passengers pick up their bags after the plane lands

The document you need to travel to different countries

when the passengers get on the plane

more expensive tickets with better seating and more services; first-class has bigger seats than economy or coach class

When something happens at a later time than expected