United Airlines , Delta Air Lines Inc and American Airlines Group Inc, along with the smaller Frontier Airlines, which is owned by private equity firm Indigo Partners LLC, announced they will require facial coverings next month.

Delta and Unitedís new rules start May 4, while Frontierís start May 8 and Americanís requirements begin May 11. The policies exempt young children from wearing masks or other facial coverings.

Many U.S. airlines are also requiring pilots and flight attendants to use facial coverings while on board aircraft.
Airlines in the United States have seen a nearly 95% drop in U.S. passengers and have slashed flight schedules. They are now working to reassure customers about the safety of air travel by instituting new cleaning and social distancing procedures.
Some airline unions and U.S. lawmakers have urged the Federal Aviation Administration (FAA) to require facial coverings for all passengers and crew.
United said it will provide complimentary masks to passengers. Southwest Airlines Co, one of the largest U.S. airlines, has not required facial coverings.