Airline passengers will face major delays if Congress allows across-the-board cuts to the budgets of agencies like the Federal Aviation Administration (FAA), Transportation Secretary Ray LaHood warned Friday. 

LaHood, speaking to reporters at Friday's White House press briefing, predicted chaos at the nation's busiest airports because thousands of FAA employees — including air traffic controllers — will be furloughed to save money. 

"This is very painful for us because it involves our employees, but it's going to be very painful for the flying public," LaHood said.