Air Canada expects most of its domestic and international routes to be back up and running Thursday after resuming operations Tuesday following the conclusion of a strike by its flight attendants.

A look at dozens of exceptional survival stories in civil aviation history shows survival often depends on a complex mix of factors.

In March, Spirit Airlines came out of bankruptcy protection in less than four months and entered a worsening landscape. Consumers were holding off booking flights and U.S. planes were awash in empty ...