Sticky Unstuck

I've written more than once about the capacity of inflation to unstick sticky wages, and how that may have been one reason Keynes thought inflation might not be a bad thing.   So I open my morning email and find my friend John saying "here are your sticky wages"--with a link to this morning's New York Times:

Unions Yield on Wage Scales to Preserve Jobs

Yep, didn't always happen that way, did it?  Although on reflection, I guess it isn't it brand new.  When was it that the commercial pilots caved to two-tier pricing?  End of the Bush years?  Or earlier?