An NTUA Diploma Thesis called "Impact of Pandemic on National and International Air Transport Demand at Athens International Airport" was recently presented by Stamatios Tsakoulis. This Diploma Thesis investigated the factors of the pandemic that influenced the air transport demand at Athens Airport and revealed that the rate of vaccination coverage of the population is the most critical variable of recovery of air traffic while the severity of the lockdown is an important inhibitory factor. In addition to that, low-cost airlines showed the highest correlation with air traffic, while airlines with chartered flights in countries with temporary traffic had a significant influence.