Delta Air Lines canceled more than 700 flights on Monday, as the air carrier continued to struggle to restore operations after last week’s global cyber outage, even as other airlines were recovering from the incident.About 19% of Delta’s flights had been canceled Monday, according to data from FlightAware, out of roughly 1,300 flights to or from the US overall, the website said.The issue has stranded thousands of Delta travelers across the US, with some having to rent cars to drive hundreds of miles while o ...