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Southwest Airlines continues to experience issues Tuesday after flights nationwide grounded the day before

USA TODAY logo USA TODAY 6/15/2021 Kaila White and Bailey Schulz, Arizona Republic
a airplane that is parked on the beach: Southwest Airlines planes fill Terminal 4 at Phoenix Sky Harbor International Airport on March 26, 2020. © Eli Imadali, Eli Imadali/The Republic Southwest Airlines planes fill Terminal 4 at Phoenix Sky Harbor International Airport on March 26, 2020.

Southwest Airlines operations continued to experience complications on Tuesday after technical issues Monday evening grounded flights across the U.S.  

The Dallas, Texas-based airline had reported operations were back to normal before announcing Tuesday afternoon on Twitter that there were "system issues" the company was "working quickly to resolve."

A spokesperson for the company did not immediately respond to a request for comment by USA TODAY. Las Vegas' McCarran International Airport spokesman Joseph Rajchel confirmed that Southwest was "experiencing issues here similar to what is being reported elsewhere around the nation" on Tuesday. 

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Southwest Airlines passengers were stuck for hours at airports across the country Monday due to technical issues.

Southwest spokesperson Dan Landson told USA TODAY on Monday that the evening's technical issues stemmed from intermittent performance issues with its third-party weather data provider, which "prevented the transmission of weather information that is required to safely operate" its aircraft.

"While Southwest teams and the vendor worked to restore connectivity, we implemented a ground stop to protect the safety of our crews and customers," Landson said Monday.

It wasn't immediately clear if Tuesday's system issues were related. 

As of 8:30 a.m. EDT Tuesday, flight-tracking website FlightAware.com showed that Southwest had 50 delays and just under 130 delays nationwide. On Monday, it had over 1,450 delays.

People began posting on social media on Monday evening that their flights were grounded, with some reporting that they were told it was due to issues with the electronic system used to monitor the weather. 


Video: Southwest Airlines Begins Resuming Flight Operations After Data Issues Grounded Planes (CBS Baltimore)

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Southwest Airlines flights grounded

At Phoenix Sky Harbor International Airport, Air Service Development Manager Alexandria "Lexie" Pierce confirmed at least six Southwest flights were canceled and every flight scheduled after 7 p.m. PDT was delayed.

Hollywood Burbank Airport in California tweeted around 7:30 p.m. that "Southwest Airlines has suspended all departures from Hollywood Burbank Airport due to nationwide network issues." The airport posted flights resumed there by 8:15 p.m. 

Denver International Airport tweeted around 8:45 p.m. that "Southwest Airlines is experiencing computer issues which is resulting in flight departure and arrival delays."

People posted on social media that they were also stuck in Dallas Fort Worth International Airport, Southwest Florida International Airport, Chicago O'Hare International Airport and more. 

New Southwest routes: Airline adds new destination, international routes

Flights resume after delays

Passenger Patrick C. Miller posted that he was at Phoenix Sky Harbor and a pilot told the crowd the airline's server in Dallas, as well as its backup server, were unavailable. Miller told The Arizona Republic that, after being stuck for hours, he was back in the air before 9 p.m.

"Most of the anxiety was coming from various forms of miscommunication and speculation vs. actual news from the source. I heard everything from total system outage, to hackers to Russians while I was listening to all of the other passengers," Miller said via Twitter DM.

"We appreciate our Customers’ patience as we work to get them to their destinations as quickly as possible," Southwest's Landson told USA TODAY. "We ask that Customers use Southwest.com to check flight status or consult a Southwest Airlines Customer Service Agent for assistance with travel needs."

Contributing: Eve Chen, USA TODAY

This article originally appeared on Arizona Republic: Southwest Airlines continues to experience issues Tuesday after flights nationwide grounded the day before

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