Airlines Webservices

Mar 31 2010 6:44 AM

Have a look on www.yatra.com . I want to know from where they are getting the data of arlines .

I want to use Airline Api in my asp.net web application.

can you help form where i get airline api which will fetch the data of airline in my application?

Is this webservice free to use or chargable?

Can you explain the steps to use ?