Around the 370 of the workers are employed by Edinburgh Airport Limited as airport ambassadors, airside support officers, engineers and managers.
In Glasgow around 320 of the staff work for ICTS and Menzies Aviation, with roles in ground services and dealing with passengers directly in security search areas.
Unite’s general secretary Sharon Graham said the strikes were due to “wealthy companies choosing to boost profits before people” and an improved pay offer was needed to avert industrial action.
Carrie Donoghue, an industrial officer with Unite, said: “Strike dates will be set in the coming days.
“Strikes will severely disrupt planes and passengers during an extremely busy period with the World Cup, Commonwealth Games and summer holidays.
“The companies need to reflect on their workers’ anger and frustration shown by the willingness to take strike action and get back round the table with improved pay offers.”
