The Russian invasion of Ukraine has led to the closure of airspace in the conflict area. This has resulted in the closure of some routes and also cut off Russia's national carrier. European Union sanctions also affect the supply of aircraft parts. The aviation industry has faced two years of significant challenges due to the Covid 19 pandemic and now the armed conflict. The purpose of this article is to examine how the civil aviation sector is doing in the war crisis. The research method used in this study focused on a conceptual and comparative approach. The results of the research analysis mapped the current effects of the war on the international aviation sector, such as the change in passenger traffic, cargo traffic, jet fuel prices and airfares, which directly affects the development of the global economy. According to the forecast of IATA - the International Air Transport Association - the current conflict will not allow aviation to quickly return to the state of 2019.