decision. this can come in handy before you buy your next airplane ticket. the domestic carriers with the most leg room is jetblue with 33 inches of space between seats followed by virgin america and southwest which has 31 inches. the one with the least leg room spirit has only 28 inches of pitch between seats and they lock their seats. you can t even reklein. frontier also has 28 inches but you can reklein. the third place is 30 inches of leg room,al league gent. american, delta and united they have 31 inches of leg room. flying overseas you may want to choose arrow mexico. south african airways. air of mexico has 34 inches. you will enjoy it.