Major German union verdi and airport operators have reached a pay agreement covering some 25,000 security staff to avert further strike action as the busy summer travel season nears. The two sides said on Monday that they had accepted a deal put forward by mediators. Salary increases of between 13.1% and 15.1% were agreed in three stages over a period of 15 months, the employers’ association BDLS said. The collective agreement is set to run until March 2025. After six rounds of failed negotiations, a closed-door arbitration process was launched on Friday. The agreement is still subject to the …