Ryanair said the rollout had already contributed to border delays of up to two to three hours over the summer at airports including Krakow, Lisbon, Milan and Rome, while Holiday Extras said the EU's decision to let the emergency EES flexibility expire without a fix was the "clearest sign yet" that the border scheme had failed.
Ryanair has called on the European Commission to extend the emergency measures allowing EU countries to suspend EES until at least April 2027.