Spokeswoman Robin Urbanski said the airline did not know the cause of the problem, which affected the systems United uses to dispatch flights for departure. ....

....United said about 268 domestic and international flights were delayed for an average of one and a half hours and 24 domestic flights were canceled. No international flights were canceled, Urbanski said.

Just another reason we need backup processes that do NOT rely on computerized systems. Have we learned nothing in the past 20 years?

How much money did the outage cost the struggling airline? Come on people, think.