This question already has an answer here:

How to book the tickets dispalyed by matrix.itasoftware.com When I search through any ticket booking site, the prices differs a lot. Even the airline website does not show the same.

marked as duplicate by JoErNanO Mar 14 '17 at 16:05

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.