Didn't see it posted anywhere else but figure this might get bumped to Foreign or Union boards

Airline passengers face chaos due to French strike - Telegraph

Around 400 flights to and from France from the UK will be canceled as a result of a walkout by air traffic controllers.

The strike will also lead to delays to other destinations because airlines will have to divert because much of French airspace will be unavailable, leading to congestion on other routes across the continent.