A major one-day strike has brought much of the air travel across Germany to a standstill, leading to widespread flight cancellations at 13 of the country's key airports, including major hubs such as Frankfurt and Munich.

BERLIN — A one-day strike by workers at 13 German airports, including the Frankfurt and Munich hubs and all the country’s other main destinations, caused the cancelation of most flights on Monday. The 24-hour walkout, which started at midnight, involves public-sector employees at the airports as well as ground and security staff.

More than half a million people are facing travel disruption at German airports on Monday where a 24-hour strike has led to thousands of flight cancellations in a dispute about workers' pay. The operator of Frankfurt airport,