A Delta ground stop has been lifted and limited departures are resuming following a power outage that impacted Delta computer systems and operations worldwide. Cancelations and delays continue.
Lines at the ticket counter at Sea-Tac Airport were building and there are arrival and departure delays there.
As of 4:25 a.m. Monday, there were three red-eye flights that were significantly delayed and eight flights coming into Sea-Tac were late.
The airline said a power outage in Atlanta overnight, which began at about 11:30 p.m. Sunday, caused a massive system outage.
Large-scale cancelations were expected Monday but flights that were en route are operating normally.
"We are aware that flight status systems, including airport screens, are incorrectly showing flights on time. We apologize to customers who are affected by this issue, and our teams are working to resolve the problem as quickly as possible," <a href="http://news.delta.com/730-am-et-update-outage-affects-departing-flights-today">Delta said on its website.</a>
Delta averages about 5,400 flights a day.
The airline said those who plan to fly on Monday should check the status of their flights.
The company said travelers will be entitled to a refund if the flight is canceled or significantly delayed. Travelers on some routes can also make a one-time change to the ticket free of charge.
Computer outages have caused major headaches for airlines and travelers before. Southwest Airlines was forced to cancel more than 2,000 flights across the U.S. last month after technology problems prevented many travelers from checking in or boarding flights.
The Associated Press contributed to this report.
Cox Media Group
