Since the start of the Covid-19 epidemic, there has been no shortage of solidarity with those on the frontline on the pandemic. One such example comes from the French NGO Aviation Sans Frontières ("Aviation Without Borders"), which has brought together key players in the aviation sector to allow medical professionals to travel by plane free of charge from one French region to another. These flights help take some of the pressure off overwhelmed hospital staff. Our reporters Benoît Perrochais and Natalia Ruiz Giraldo went on board.