I had some questions of about how airline strikes of flight and/or cabin crew work. The questions are more for legacy international carriers in countries that have collective bargaining for crews. This is a general question and not only focused on the looming LH strike.

How does the union coordinate the start date/time of a strike? I know they normally give 24 hour notice, but does the strike start at one time internationally (i.e. 05:00 UTC) or is it somehow rolling like noon local time. How are flights that are scheduled to take off before the start of the industrial action but have a scheduled landing after the start handled?

For crews at outstations, do they operate a flight back to home base / hub even if it is after the start of the strike? If they are stuck from the home base does the company pay per diem and for hotel rooms?

When the strike is announced will the airline stop sending flights to outstations? Do they prefer to hold planes at hubs or are there crowding issues?

I would appreciate everyone's insight.

Thanks,
IAD_flyer

Every nation has its own laws that govern concerted activity by labor unions. And those laws can vary by industry. For example, in the US, the Railway Labor Act governs airline employees, not the National Labor Relations Act. So to some extent, there is no "global" answer.

I was more asking generally how these things work. My questions are more on the airline operations side then of the strikes themselves.

They're not so easily separated. For example, how much notice a union must give before a strike (if any), is regulated. What the company provides for workers "stuck " due to strike would likely be governed by law and the CBA at issue.