Earlier this week, two domestic Delta Air Lines flights at Hartsfield-Jackson Atlanta International Airport (ATL) had their anti-collision alarms sound after coming into close proximity with one another while one departed and the other arrived. The Inbound Flight Had Already Been Diverted Earlier That EveningAccording to CNN, the inbound flight involved in the close call was Delta flight 1568. This service had originated at Pittsburgh International Airport (PIT) with historical tracking data made available by Flightradar24 showing that it departed at 6:17 PM, just four minutes behind schedule. Related Delta Air Lines Boeing 757 Returns To Atlanta Amid Engine Issues The aircraft remained on the ground for two days following the incident. Simple Flying Quiz Think you really know Delta Air Lines?