Major US airlines experienced delays on Monday following a glitch to a data system used in flight planning.
The program, Aerodata, takes data on the weight and balance of the plane.
Airlines affected included Delta, United, JetBlue, Southwest and Alaska, said a spokesman for the Federal Aviation Administration, adding that mainline operations and regional service were affected to "varying degrees."
Passengers were encouraged to contact the carriers, the FAA spokesman said. The glitch was resolved this morning, he added.
Southwest had an "internal ground stop" for about 40 minutes due to the outage, a spokesman for the airline said, adding that the problem was resolved by 11:05 GMT.
"Scattered flight delays are expected and customers should check Southwest.com for the latest updates on specific flights," the Southwest spokesman said.
(This story has not been edited by NDTV staff and is auto-generated from a syndicated feed.)
Get Breaking news, live coverage, and Latest News from India and around the world on NDTV.com. Catch all the Live TV action on NDTV 24x7 and NDTV India. Like us on Facebook or follow us on Twitter and Instagram for latest news and live news updates.