Norwegian Air Shuttle ASA, trading as Norwegian, is a Norwegian low-cost airline and Scandinavia's second-largest airline, behind Scandinavian Airlines. It is the fourth largest low-cost carrier in Europe behind Wizz Air, easyJet and Ryanair, the largest airline in Norway, and the ninth-largest airline in Europe in terms of passenger numbers. It offers a high-frequency domestic flight schedule within Scandinavia and Finland, and to business destinations such as London, as well as to holiday destinations in the Mediterranean and the Canary Islands, transporting over 30 million people in 2016. The airline is known for its distinctive livery of white with a red nose, with portraits of high achievers on the tail fins of its aircraft.

A low-cost carrier (LCC) or low-cost airline, also called no-frills, budget or discount carrier or airline, is an airline that is operated with an emphasis on minimizing operating costs. It sacrifices certain traditional airline luxuries, for cheaper fares. To make up for revenue lost in decreased ticket prices, the airline may charge extra fees such as for carry-on baggage. As of April 2020, the world's largest low-cost carrier is Southwest Airlines, which operates primarily in the United States, as well as in some surrounding areas.