Several airlines on Monday experienced system interruptions that caused anger among travelers.
Southwest and Delta both recognized on social media, they experienced problems with their systems.
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"It affects our flight system widely, and we're working to see if it also affects other carriers this morning," wrote Southwest in response to a convenient flier. "Meanwhile, once more information has been made available our agents at the airport will be happy to spread it to everyone."
Delta added: "I totally regret, we currently have a System-Wide Outage we work diligently to get it again. We do not have a specific time yet."
The FAA said in a statement that the airlines experienced problems "with a flight planning weight and balance program called Aerodata. The main business and regional operations are affected to varying degrees." [1
Southwest and Delta Airlines flyers tweeted about their dissatisfaction with their delays.
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Last week, travelers across the country experienced widespread data outbreaks that caused more delays across multiple airlines. American Airlines, Alaska Airlines and JetBlue were among the affected airlines.
Fox News & # 39; Michael Bartiromo contributed to this report.