There is no difference between "economy" and "coach" classes, according to Seatguru.com. The words are interchangeable for describing the main cabin of an airplane, where the majority of passengers sit.
Most airplane seats are in economy class, located behind first class. Seat width is approximately 16 to 18 inches, and legroom ranges from 28 to 34 inches. Amenities vary by airline, but many provide food and drink options.
Short-haul and long-haul economy differ primarily in regards to entertainment options, which are more common on flights over three hours. Premium economy is offered by some airlines and offers bigger, more comfortable seats, premium food options, personal TVs and laptop ports at a price somewhere between economy and first class.
Economy seats offer less room than first class, fewer food and entertainment options and more limited service, but tickets can cost up to 95 percent less.
The lowest price doesn't necessarily mean the best value. Compare entertainment and food options, seat assignments, frequent traveler programs and checked baggage costs.
More than 47 percent of business travelers would rather have Wi-Fi at the airport than food, according to an American Airlines study.
