Almost 700 airport workers in Edinburgh and Glasgow have supported the strike during the peak summer holiday season, including during the World Cup and Commonwealth Games in Glasgow.
Unite, the union, said on Thursday it would announce strike dates in the coming days, but said strikes were expected to occur over the course of the two main events.
Around 370 workers employed by Edinburgh Airport Limited and around 320 workers employed by ICTS and Menzies Aviation in Glasgow have backed the strike over ongoing pay disputes.
The union said ICTS workers handle passengers directly at security search areas and process them for flights.
“Workers at Scotland’s largest airports have overwhelmingly backed the summer strike.
“This is a direct result of their very profitable employers' refusal to make a fair pay offer,” Unite general secretary Sharon Graham said.
“Workers have no choice and the blame for this situation lies entirely with wealthy companies who choose to increase their profits before the people.”
A spokesperson for Menzies Aviation said: “We are disappointed that the union has moved forward with strike action in an attempt to disrupt flights at Edinburgh and Glasgow airports this summer.
“We have engaged constructively throughout and submitted a fair and workable offer to all parties that recognizes the challenging operating environment caused by the Middle East conflict.
“Wages in both locations have risen consistently above inflation since the Covid pandemic, and our current proposal is again above inflation and in line with agreements the union has reached with other ground handlers in Edinburgh and Glasgow. We hope an amicable resolution can be reached soon.
“In the event of a strike, we have robust and proven contingency plans in place to minimize any potential disruption to our airline customers and their passengers, ensuring flights can operate as scheduled.”
A spokesperson for Edinburgh Airport said: “Constructive pay talks with Acas took place today between Edinburgh Airport and its unions, including Unite.
“Further talks are planned for early next week.”
An AGS Airports spokesperson said: “We are aware of the regrettable developments involving Unite, Menzies and ICTS, including threats to disrupt passengers' holiday plans.
“Both Menzies and ICTS continue to engage in discussions with the union as they work to find a resolution on pay concessions.”
