What GCSE's Do I Have To Take In Order To Become An Air Hostess?

You'll need to take geography ispecially leisure and tourism
y'all also need to have the basic english and maths
science in biology will be quit useful so you'll  know when someone has an injury you could help.
You'll always probably need to take drama to show your confident
you'll need to be a a strong swimmer and swim up to 25 and more metres
you'll need to leran some languages which will be usefull for your airline

According to my opinion ,i think we need to be qualified in English and maths.

Aim for at least four GCSEs, including the basic ones like English and Maths.  In addition, consider the following:

Geography

Languages: Spanish, French, German, Mandarin, Cantonese, Arabic, Japanese, any of these would be a big plus. Russian, Hebrew, Dutch, Italian, Portuguese not bad, either.  The latin languages (Spanish, French, Portuguese, Italian) all have a lot in common with each other, enough overlap to make them not so difficult to study together.

Business

Economics

History

You'll probably have to wait until you're at least 19 before any airline would consider your application (21, in some cases).   So why not choose the 2 or 3 subjects you like best and carry on at A-level?  That will look even better on your application.

Plus you must meet the height and weight requirements (5'2" to 6' tall, and quite fit).   AND you'll need a certain manner, which mostly involves being polite to the public at all times and keeping your cool under pressure!

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U need to be buff