API for flight prices [closed]

Question

Does a flight prices API exists ?

I wonder how sites like www.skyscanner.com work.

Do they have contract with flight company or are these informations public ?

I would like to have informations for example as JSON or XML.

Answer 1

The one that has been around the longest that I am aware of is Sabre. I integrated an IVR system to it about a decade ago. It handles flight and other travel information. I think it is a bit pricey though. Here is another QA on the same topic.