Passengers must wear masks on Delta, United, and JetBlue flights

Delta, United, and JetBlue will now require you to wear a face mask when you fly.

This coming after a video showing a crowd went viral, sparking safety concerns.

NOW REQUIRE YOU TO WEAR A FACEMASK WHEN YOU FLY.LAST WEEK...THIS VIDEO SHOWING A CROWDEDFLIGHT WENT VIRAL...SPARKING SAFETY CONCERNS.ALL MAJOR U.S.AIRLINES HAVE NOW BLOCKED SOMEOR ALL MIDDLE SEATS.BUT THE LEADER OF THEASSOCIATION OF FLIGHTATTENDANTS GOING EVENFURTHER...TELLING CNN THERE MUST BE AFEDERAL BAN OF LEISURE TRAVELBY AIR."BECAUSE THE FLIGHTS HAVE BEENPULLED DOWN WE'RE SEEING MOREAND MORE FULL FLIGHTS WITHOUTPOLICIES THAT REALLY ADDRESSPROPER SOCIAL DISTANCING."SOUTHWEST AND AMERICAN AIRLINESWILL ALSO BE REQUIRING MASKSSTARTING NEXT MONDAY...MAY 11TH.MEANTIME -