Two airlines nearly collide taking off from Houston's Bush Intercontinental Airport

Two jets narrowly avoided a collision while departing Houston’s Bush Intercontinental Airport earlier this month, prompting a federal investigation.

A Volaris Airlines flight bound for El Salvador made an unauthorized right turn into the path of a United Express flight headed to Jackson, Mississippi, according to the Federal Aviation Administration (FAA). 

Air traffic control instructed Volaris Flight 4321 to turn left after departing Houston Intercontinental Airport on Dec. 18, but instead...