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 of exposure to the virus that causes COVID-19.
- Stay at least 6 feet (about 2 arms’ length) from anyone who is not from your household. It’s important to do this everywhere — both indoors and outdoors.
- Wear a mask to keep your nose and mouth covered when you are outside of your home.
- Wash your hands often or use hand sanitizer.
- Watch your health: Look for symptoms of COVID-19, and take your temperature if you feel sick.
- See CDC’s After Travel webpage to learn if you should take additional precautions.
Source: https://faq.coronavirus.gov/