QPX™, the airfare pricing and shopping engine from ITA Software, changed airfare shopping forever. Our comprehensive search depth and flexibility handles even the most complex travel queries with ease.
With QPX, airlines and travel distributors can offer precisely what every customer wants — user-friendly options, self-service offerings, and a wide array of accurate results.
QPX presents a developer-friendly XML interface loaded with information about fares, rules, schedules, and seat availability to the outside world. Faced with a travel query, QPX sorts literally billions of flight and fare combinations to arrive at the best and most comprehensive set of recommendations. Its computations are powered by novel graph algorithms, search techniques, optimization strategies, heuristics and a staggering volume of domain-specific knowledge.
Here’s where you can learn more about the computer science behind ITA and QPX™:
Computational Complexity of Air Travel Planning
Carl de Marcken
Computer Scientists Find Unexpected Depths in Airfare Search Problem
Sarah Robinston, SIAM (Society for Industrial & Applied Mathematics)
Behind the Fiendish Complexities of Airfare Pricing
The Wall Street Journal