Southwest Airlines suffered delays across the country for the second day in a row.
Travelers on the ground took to Twitter to share news of delayed or canceled flights and also shared images of crowded airport terminals.
Southwest said News week it is “resuming normal operations after a brief hiatus in our flight activity” due to “intermittent performance issues with our network connectivity”.
“Our teams are working quickly to minimize flight disruptions and the impact on customers,” said Southwest spokesperson Chris Mainz. “We appreciate the patience of our customers as we work to get them to their destination. We ask travelers to use Southwest.com to check their flight status or to consult a Southwest Airlines customer service agent at the airport for assistance with their travel needs. “
Mainz also said Southwest has proactively canceled 500 flights due to the outage and “is working with these customers to get them to their destination as quickly as possible.”
Southwest resumed regular operations at 2 p.m. ET, according to Flight Radar, a global flight tracking service.
The Down Detector website followed reports of the outage for the Southwest on Monday and Tuesday. Reports of delays on Tuesday began to increase around 12:30 p.m. ET. After 2 p.m., the ratios started to drop.
Southwest responded to some frustrated travelers on Twitter earlier Tuesday afternoon, saying the airline was experiencing technical issues affecting level phones. The airline asks customers to send a direct message to their account with flight information for further assistance.
More than 1,400 flights across the country were delayed Monday evening. Southwest blamed the problems on its third-party weather data provider. A spokesperson said the system “experienced intermittent performance issues” that prevented the necessary weather information from being sent to flight crews.
“As Southwest Teams and the supplier worked to restore connectivity, we implemented a ground stop to protect the safety of our crews and customers,” Southwest Airlines’ Dan Landson said in a statement.
The problem started around 9 p.m. ET and flights were able to resume at midnight.
Delta Air Lines and Alaska Airlines also encountered technical issues affecting their booking sites and applications on Tuesday.
“Delta teams are working to quickly resolve a technical issue that makes it difficult for customers to purchase flights on delta.com, the Fly Delta app and through our reservation call center,” Delta said in a statement to ABC News. “The ability to check in for flights is not affected. We apologize to our customers for any inconvenience this may cause.”
This story was updated with comments from a spokesperson for Southwest Airlines.