The ITA Software Matrix is the closest thing travel has to a mainframe computer terminal. It is ugly. It is powerful. And it is the reason you haven't overpaid for a flight in the last decade.
Why? Because ITA (now Google) is a B2B software company. They provide the brain; they let Expedia and Kayak provide the checkout cart. With Google Flights becoming more user-friendly every year, is the classic ITA Matrix dead? ita software matrix
The ITA Matrix uses algorithms. It can scan hundreds of billions of fare combinations in one second. The result is the famous "Calendar Grid"—a color-coded chart showing you the cheapest day to fly in the next 11 months at a single glance. The Secret Weapon: Advanced Routing Codes Where the Matrix truly shines (and scares beginners) is the Advanced Routing Code . The ITA Software Matrix is the closest thing
Beyond the Search Box: Unpacking the Genius of the ITA Software Matrix And it is the reason you haven't overpaid
Before the Matrix, if you wanted to know if it was cheaper to fly on a Tuesday vs. a Saturday, you had to run two separate searches. The old systems were "session-based"—they looked at one date at a time.
It is a search engine for inventory , not a travel agency. When you find a great fare, you have to copy the exact flight numbers and fare codes and go to the airline’s website or a third-party agent (like Orbitz) to book it.