Air traffic controllers sounded the alarm and told both pilots to take evasive action.
The Federal Aviation Administration said it's investigating an extremely close call between two Southwest Airlines flights at Nashville International Airport.
An American Airlines flight had to make an emergency landing at Newark Liberty International Airport on Wednesday night.
The sudden and surprising airspace closure over El Paso, Texas, on Wednesday stemmed from the Pentagon's plans to test a laser for use in shooting down drones used by Mexican drug cartels, according to three people familiar with the situation.
What could have been a major disaster was averted with just seconds to spare at a busy U.S. airport.