One in six Ryanair flights will be cancelled today (Friday) due to a 24-hour pilot strike in five countries.
The action has thrown the travel plans of up to 70,000 passengers into disarray, as 396 flights are affected.
Staff in Ireland, Germany, Sweden, Belgium and the Netherlands are staging a walkout over pay and conditions.
The airline said 396 flights have been cancelled as a result, forcing passengers who planned to travel on Friday to rebook or take different routes.
Ryanair planes have a capacity of 189, meaning more than 74,000 passengers could be affected.
Last month, 300 hundred flights a day were cancelled when staff from Spain, Portugal and Belgium went on strike for 48 hours.
The Irish budget airline said the strikes were “regrettable and unjustified” and called for unions to come back to the negotiating table.
Despite the walkouts, 85% of its scheduled flights, more than 2,000, will operate as normal, Ryanair said.
“Ryanair took every step to minimise the disruption and we notified our customers as early as possible advising them of their free move, refund or reroute options,” the carrier said.
“The majority of customers have already been accommodated on another Ryanair flight.
“We want to again apologise to customers affected by this unnecessary disruption and we ask the striking unions to continue negotiations instead of calling any more unjustified strikes.”
What to do if your flight has been cancelled
Passengers whose flights have been cancelled should already have been informed via text or email, but all those travelling to or from the affected countries with Ryanair on Friday are advised to check with the airline.
The Ryanair FAQ section on the website states: “If your flight is cancelled there are two options available to you to choose from. You can either apply for a refund or change your cancelled flight for free.”
For more information on the procedure to follow if your flight is cancelled visit ryanair.com