A technical glitch with Southwest Airlines' online system caused delays for passengers nationwide Wednesday afternoon. A two-hour ground stop for some flights was lifted about 5:30 p.m.
"Southwest Airlines began experiencing intermittent performance issues earlier this afternoon with multiple technology systems as a result of an outage," the airline said in a statement earlier in the afternoon. "We are now managing flight delays across our system, with a temporary ground stop in place for those flights that have not left the gate. We have a team of experts working diligently to resolve the technical issues and their efforts have systems gradually coming back online."
Southwest passengers reported outages and delays Wednesday on Twitter. Most said they were unable to check into flights and others weren't able to make flight reservations online.
Southwest Airlines tweeted about the technical issues about 3 p.m. Wednesday. "We are aware and investigating current issues with our systems. We will keep you posted as we have more information to share," it read.
The technical issues caused some delays at Tampa International Airport.
Southwest is the Tampa airport's largest domestic carrier and accounts for 35 percent of all air traffic.