Southwest Airlines flights resumed Wednesday afternoon after being grounded nationwide when the Dallas-based carrier’s computers went down.
The computer problems began about 2 p.m., the carrier said. A temporary ground stop was put in place for planes that had not left the gate.
The ground stop was lifted about 3:30 p.m., according to the Federal Aviation Administration. But at 5:30 p.m., FlightStats.com was reporting that almost 600 Southwest flights were delayed.
Southwest’s website was also down on Wednesday afternoon. Customers got a message saying not to refresh the browser, that they would be redirected to Southwest.com when it became available. Flight status and check-in capability were back online about 5 p.m.
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The carrier said it would post updates to its Twitter feed and Facebook page. On social media, Southwest offered refunds to customers who had to make other travel arrangements.
There were long lines to check in at Southwest’s counters at Dallas Love Field because customers could not print out boarding passes or bag tags at the self-check-in kiosks.
Customers took to social media, some complaining about the delays and others posting pictures of long lines and manual boarding passes.