What happens next?

How to choose a low cost airline
Use flight search engines for budget airlines.
Familiarize yourself with the budget airlines available in your country so you can take advantage of flight search engines that cater to them. Flight search engines will provide airfare pricing for every budget airline that accommodates your travel dates/times.
This allows you to easily comparison shop for the cheapest price. Use multiple flight search engines to make sure you don't miss any additional results or cheaper fares.