What is the risk of getting COVID-19 on an airplane?
Air travel requires spending time in security lines and airport terminals, which can bring you in close contact with other people and frequently touched surfaces. Most viruses and other germs do not spread easily on flights because of how air circulates and is filtered on airplanes. However, social distancing is difficult on crowded flights, and you may have to sit near others (within 6 feet), sometimes for hours. This may increase your risk for exposure to the virus that causes COVID-19.
CDC strongly recommends everyone wear a mask on public transportation and at transportation hubs, including on airplanes and in airports.
For more information: Exposure Risk During Travel
See also: Traveling