Today in an interview Wednesday.The CEO said the stance is one he’s taking in order to keep crew and passengers safe during the pandemic.As the coronavirus pandemic continues, Delta flights have been booked to 60% of their capacity, Today reported after speaking with Bastian.And for people who board a flight with the claim that they are unable to wear masks due to a health condition, Delta will now require those people to complete a “Clearance-To-Fly” process before being permitted to travel.That process, which can take an hour, is facilitated by a Delta agent and is done with a third-party medical professional.If the person is not medically cleared to fly without a mask, he or she will either be required to wear one or, according to.