Just read an interesting article from "The Points Guy" newsletter today and it lists upcoming strikes for England, France, Germany and Spain. Looks like it is going to be a challenging time flying over the next couple of months. You might want to check this out if traveling or connecting thru these countries.
https://thepointsguy.com/news/travel-disruption-strikes-europe/?utm_source=TPG Daily Newsletter&utm_medium=email&utm_campaign=6524093&utm_usr=ea6f639740020e5d6772059f34f4fd3004c96e0cc0830f3e2fa11a8d3e1388ef&utm_msg=428a7c696c0d4c1691d02a88a035a4f4&utm_date=2023-04-01