You will find seat availability for all schedule flights all over the world . The app will show what is available for sale right now and this can include what they plan to overbook the flight with.This is very helpful for standby passengers.Most of the low cost airlines are not in this system.Please note that the results are´t 100 percent accurate. It is impossible to gather completely accurate information about each airline.I did the application to myself, but due to high demand, I put it back into a market. The application is a beta version, but it works.Thank you for all the feedback I have received e-mail.