Delta took the CES stage for the third consecutive year to talk about the airline's efforts to use technology to better connect with employees and customers

Atlanta’s domestic terminal south security checkpoint will be the first in the U.S. to be converted to upgraded, high-tech screening lanes, making the world’s busiest airport even more efficient.

The air on Delta aircraft is completely refreshed every 2 to 6 minutes with fresh outside air or air that has been recirculated through industrial-grade HEPA filters.