Low-cost airlines (also called "low-cost airlines") were first invented by Americans. At present, it is generally believed that Southwest Airlines is the originator of this industry. Perhaps, this airline, founded in the 1970s, defined "low-cost airlines".

1. Since the main purpose of flying is to fly from one place to another, low-cost airlines can greatly cut off all kinds of non-essential items, such as catering, baggage check-in, in-flight entertainment, etc., on the premise of ensuring that you can safely reach your destination. Cutting off these services, on the one hand, reduces the procurement cost, on the other hand, it also reduces the aircraft load and saves fuel expenses.

Compared with ordinary airlines, flight attendants and flight attendants of low-cost airlines have a lot of hard work, not to mention low wages. They have to wear several hats, such as serving tea and water, cleaning and checking tickets. Such a flight can save three or four employees' wages.

3. Unlike ordinary airlines, which are usually equipped with wide-body passenger planes such as Boeing 747 and Airbus A380, low-cost airlines mostly use small planes and focus on one or two models. First, they save money and fuel, because buying the same model in bulk can get greater discounts; Secondly, the unification of aircraft types also reduces the training cost of crew and the maintenance cost of aircraft.