EXPLORE THE FARE THEORYStart with the ideas behind airfare, award travel, flight value, and smarter travel decisions.

Learn when upgrades, award flights, premium seats, and other travel extras are actually worth it.
Why Do Exit Row Seats Have More Legroom? Emergency exits need to remain accessible so passengers and crew can use…

Most travel websites tell you where to go or which credit card to use.
The Fare Theory explains why airfare changes, how airlines make pricing decisions, and how you can use that knowledge to make better travel decisions.
Whether you’re paying cash, redeeming miles, or deciding if an upgrade is worth it, our goal is simple:
Help you think like the airline, not just the traveler.
Does aircraft type matter when booking a flight? The answer is yes, but probably not for the reasons most travelers think. Aircraft type can influence cabin layout, seat configuration, noise, cabin environment and the overall onboard experience. But the airplane…
Google Flights is one of the best tools for finding cheap flights, but most travelers only use a fraction of its features. If you know how to use Google Flights effectively, you can compare flexible dates, track airfare, search multiple…
Most people assume airlines price flights based on one simple factor: distance. It sounds logical. A longer flight should cost more than a shorter one. After all, flying farther requires more fuel, more crew time, and more operating costs. But…
If you’ve ever searched for airfare, found a reasonable price, and then hesitated before clicking purchase, you’ve probably asked the same question millions of travelers ask: Should I book this flight now or wait? You think to yourself that maybe…
Travelers spend countless hours trying to find ways to score cheap flights and save money wherever they can. We compare airlines, search multiple booking websites, transfer points between loyalty programs, and obsess over finding the cheapest airfare possible. But finding…