Can anyone help me with Budget Airlines?

[Kellyroberts]

Hey guys!

Just wondering if anyone could help me.

I know in Australia the main budget airlines available are Jetstar, Virgin Blue and Tiger Airways.

In Europe the main ones I know are Ryanair and Easyjet. Any others for Europe?

Can anyone tell me what the main budget airlines are for the following…

USA

Central America

South America

Asia

Middle East

Africa

Would really appreciate any help on this. Many thanks in advance.