Other countries may join the action, he added.
The dispute is over management's approach to transfers between bases.
Cabin Crew United's "charter of demands" was unveiled a day after Irish-based pilots served notice of a 24-hour strike next Thursday, and warned there is more to come.
Some 120 union members, a lot of them captains, are directly employed by Ryanair and able to strike, a spokesman for the union said.
So far, Ryanair hasn't commented on this new set of demands but in the past, the Dublin-based carrier has faced down industrial strife.
A spokesman for Ialpa said: "Our member pilots directly employed by Ryanair complain that there is no transparent system for the determination of important matters including voluntary/involuntary base transfer/allocation, command upgrade, allocation of annual leave and promotion".
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While Ryanair has also had success in Britain and Italy signing recognition agreements with cabin crew, some of its crew will gather in Dublin on Wednesday to demand better conditions in their first pan-European summit.
Ryanair has hit out over air traffic control (ATC) strikes once again, saying they proved particularly turbulent last month.
Although the strike was by pilots based in the Republic of Ireland, union leaders say it could have a knock on effect across the United Kingdom as the budget airline attempts to fill the shortage.
Meanwhile, the airline said air traffic control strikes meant 210,000 passengers faced flight cancellations in June.
Despite the flight cancellations, the company pointed out that its load factor - a measure of how well airlines fill planes - remained unchanged at 96%.
But ATC action has become a regular headache for the industry in recent years, with 2017 said to be a record for strikes, with 41 days affected.
"What Ryanair pilots are asking for is commonplace in many airlines and is not unreasonable".