Not WITHOUT the merger.
Like an STD, it is impossible to get rid of a union unless a major change of control takes place.
and it is precisely because DL has been non-union for most employees that one DL merger or asset acquisition after another has resulted in the largest airline workforce that consists of employees.
btw, I flew recently with a DL FA who has just been with DL for a few months, is from a heavily union based state, and is as happy as a clam - and so were her coworkers - and they see absolutely no use for a union.
The whole notion that unions can do anything of value is based on ancient history that didn't even apply at DL and DL's rapid hiring is bringing in even more new employees who dilute the union mindset.
the IAM had their best chance to unionize DL FAs, blew it, and the chances of a union at a large DL workgroup is shrinking by the day.
Once again I accurately said 7 years ago that DL would remain largely non-union while others were convinced otherwise and once again, I am right and a lot of people are not only mad but can only resort to name calling to hide their own frustration that DL employees haven't bought the union bill of goods.