Budget airlines are air carriers offering bargain prices usually in exchange for reduced service, amenities, frequent flier rewards, or other.
Budget carrier airlines won’t usually provide such amenities as in-flight entertainment devices.
Some budget airlines that are well known include Ryanair, easyjet, jetBlue, and Wizz Air. Though Asia and Europe have many more budget carriers than North America, the largest one in the world is currently Southwest Airlines of the United States.
Budget airlines are sometimes referred to as low-cost airlines, low-cost carriers (LCCs), no-frills airlines, or discount carriers.