However it faces greater disruption next Friday with Irish pilots joining colleagues in Sweden and Belgium on strike, and Ryanair braced for action in Germany and the Netherlands on the same day.
Its shares fell further on Thursday and were down 3.6 percent at 13.02 euros by 1525 GMT, their lowest level since November 2016 and 8 percent below the level hit in December when Ryanair shocked the markets by recognising unions.
Pilots staged their fourth one-day strike today, with their union, Forsa, scheduling another for Friday August 10, the same day as similar strikes by Ryanair pilots in Belgium and Sweden.
The news comes as talks between the two parties made little progress.
The recent strikes launched by Ryanair's pilots in Ireland first started on July 12 after they lost their patience with their employer over the talks on the improvement of their working conditions which mainly centered around a demand for base transfer, annual leave and promotions based on seniority.
Ryanair's summer of strike chaos is set to continue next week as yet more Europe-wide action was announced yesterday.
"After a year of negotiations, the failure of Ryanair to recognise Sepla and apply Spanish labour legislation for the pilots who operate in Spain forces the union to take a legal path to attain this objective", the union said.
Airline chiefs claim all passengers left stranded by the cancellations were notified last week by email or text message. The move could result in the loss of over 100 pilots and more than 200 cabin crew jobs. Ryanair blames the involvement of Aer Lingus pilots that it said are disrupting the process.
Last month, a Dutch appeals court ruled that Ryanair employees who are based in the Netherlands were covered by Dutch law.
Ryanair refused to say anything on the lawsuit, saying it did not "comment on rumour or speculation".