Newer and more efficient airplanes means airlines are offering longer and longer flights, but can you handle 13 hours with only 30 inches of space? 

Condé Nast Traveler reports which airlines, both domestic and international, offer the best (and the worst) legroom.

"Pitch" isn't just a term used in baseball. 

The word is also thrown around quite a bit in air travel, where its definition is the measurement of the distance from a seat to the one behind it. The more popular, not to mention maligned, term is "legroom," and, yes, some airlines offer more of it than others. Condé Nast Traveler's rankings are not universally inclusive; only major, recognizable airlines were taken into account in our survey. 

Because airlines are constantly updating their cabins and fleets, the figures listed below are subject to change.