Several U.S. air carriers have canceled or delayed flights across the Caribbean after American forces' operation in Venezuela on Saturday. The cancellations were spurred by the Federal Aviation Administration's closure of airspace in the Caribbean. Delta Air Lines said that it "began canceling flights early Saturday morning in compliance with FAA airspace closures" and said affected customers would be contacted through the Delta app. "We are making schedule adjustments as necessary with the safety and security of our customers and team members top of mind," American Airlines told CNBC.