Price. Business Class seats are expensive. They are just triple the price of Economy Class, but cheaper than First Class. The departure airport has dedicated business class check-in counters, which are less crowded.
Standard economy allows carry-on bags and complimentary seat selection, while basic economy, as the cheapest of the bunch, carries the most restrictions.
Premium economy's big selling point is more space. The seats are an inch or two wider on average than the typical coach seat, and the rows are farther apart, offering several more inches of legroom. Most premium economy seats recline, and many have footrests. How much space you actually get depends on the airline.
Traditionally, an airliner is divided into, from the fore to aft, first, business, and economy classes, sometimes referred to as cabins. In recent years, some airlines have added a premium economy class as an intermediate class between economy and business classes.
Seat pitch and width can vary greatly among airlines - even among aircraft types for the same airline. One or two extra inches of seat pitch (distance from one row to the next) can make a huge difference in your comfort and productivity.
More space, but not necessarily more comfortThe seats are an inch or two wider on average than the typical coach seat, and the rows are farther apart, offering several more inches of legroom. Most premium economy seats recline, and many have footrests. How much space you actually get depends on the airline.
Passengers that fly First class can expect a superior experience with plenty of legroom, reclining seats, meal choices, full bar service or bartender, in-flight entertainment and Wi-Fi. It is a very comfortable and luxurious experience for each passenger who gets personal attention from flight staff.
Generally, first class is more expensive than economy class, though the actual difference in price depends on the route, when you purchase the ticket and how many seats are available. Economy class seats are fairly standard, while you can experience a variety of seats in first class.
Many airlines offer same-day changes for a low fee, and these are often waived for certain tiers of elite status. The benefit of same-day changes is that you do not have to pay a fare difference when moving to a more expensive flight.
Seating in Business ClassBusiness class seats are bigger; wider and with more legroom than economy. The variations between airline standards for business class aren't huge, most seats being around 3 – 4 inches wider than economy and with around 15 -20 inches more leg room.