Travelers pass through Salt Lake City International Airport Thursday, June 30, 2022, in Salt Lake City. Airlines that have stumbled badly over the last two holidays face their biggest test yet of whether they can handle big crowds when July Fourth travelers mob the nation’s airports this weekend. Problems were popping up well before the weekend, with some disruptions caused by thunderstorms that slowed air traffic. AP Photo/Rick Bowmer
By The Associated Press The July Fourth holiday weekend is off to a booming start with airport crowds crushing the numbers seen in 2019, before…