It has been a tough last couple of days for Delta Air Lines. Its busiest airport was in complete disarray as almost every air traffic controller didn't show up to work at Hartsfield-Jackson Atlanta International Airport.

Of the 22 employees, only four showed up to work, adding to flight disruptions.

Last weekend and into the new week, Delta has been experiencing some of its worst days . Adding to it, some passengers are furious over Delta's cancellation notifications. Although the airline has promised to keep in close contact with its customers, some argue that this hasn't been the case.

Several customers have been reporting IT issues in recent days.

Here's a closer look at the issues Delta passengers are experiencing, and how the airline has responded.

Delta Customers Are Complai

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