An aircraft comes to earth.
Land
The part of an airport that you go through when you arrive on a plane
Arrival
Reserve a journey, made especially by plane
Book a flight
An electronic machine that is used, for example at an airport, to see if people are hiding metal objects such as weapons
Metal detector
A flight attendant
Hostess
To leave the ground and begin to fly
Take off
To go to a desk in a hotel, an airport, etc. and tell an official there that you have arrived
Check-in
To go from one place to another.
Travel
Bags or cases that contain somebody's clothes and things when they are travelling
Baggage / luggage
The government department that collects taxes on goods bought and sold and on goods brought into the country, and that checks what is brought in
Customs
The place at an airport where you get your bags again after you have flown
Baggage claim
A printed piece of paper that gives you the right to travel on a particular bus, train, plane...
Ticket
A room for waiting in at an airport, etc.
Lounge
An official document that identifies you as a citizen of a particular country
Passport