Anyone can fly coach, but when you want to get somewhere and do it in style, look no further than PrivateFly.

Google Flights is one of the most powerful tools for finding the best airline deals and routing. It can save you a ton of time relative to searching around on the websites of individual airlines, and it works well for both domestic and foreign airlines. It even has features built in to help you find great airfares even if you don’t know exactly where you want to go. More on that below. But first, what it is and how it works.

ITA Matrix is popular among frequent flyers and travel hackers because it provides so much control over the parameters of your search. You can force connections in a certain city, exclude airlines, and even pick exact flight numbers. Some of these functions are possible with other websites but can be extremely cumbersome. Finding a great itinerary with ITA Matrix can make it easier to reconstruct elsewhere for cash or award tickets.

The best feature of ITA Matrix is the advanced routing language that can be used to specify a traveler’s exact needs. Many other airlines and online travel agencies use the same technology as ITA Matrix precisely because of powerful abilities like this.

There are many ways to search for flights: airline websites, online travel agencies (OTAs), search aggregators like Kayak, and even visiting a human travel agent. However, many of these tools are trying to sell you something — a ticket for your next business trip or vacation — and may not always provide the most useful information.