Why Do Most Low-Cost Airlines Only Have Economy Class Cabins?

If you have ever been onboard a budget airline, you have likely noticed that there are only economy-class seats, with no business class or premium economy cabins. Some budget airlines do have larger seats or recliners in a separate premium class on long-haul flights. For the most part, low-cost carriers on short routes typically have just an economy cabin, where as many passengers as possible are packed into seats that are some of the industry’s smallest.