ObjectivesThe purpose of this article is to present the impact of the Covid-19 pandemic on the operation of airlines and the aviation sector as a whole. The pandemic forced airlines to make many changes in their operations and greatly affected the entire aviation sector. The operation of the aviation sector during the pandemic period was affected by the administrative closure of flights for months, as well as the regulation banning flights to selected countries.MethodsThe study used the method of analyzing statistical data and reports on the aviation sector. The method of analyzing statistical data made it possible to compare data from the aviation sector on, among other things, the number of passengers carried, and the number of flights made.ResultsAs a result of the development of the Covid-19 pandemic, the aviation sector reduced the number of flights operated, which contributed to a decline in the number of passengers carried and heavy losses for the sector. During the pandemic period, the growth of airlines was sharply halted.ConclusionsAviation around the world operated for several months in a completely new and highly unpredictable reality. The crisis caused by the Covid-19 pandemic is the biggest crisis in aviation history. The sector needs to define clear rules and messages in crisis situations.