French pilots working for easyJet Europe have expressed their concern over a difficult summer ahead, with multiple flight cancellations looming.

In a letter to management, pilots belonging to the SNPL union (Société nationale des pilotes de ligne) said that there is a serious shortage of cabin crew, and to a lesser extent pilots.

The letter, sent on June 6, said that management has not realised the extent of the problem, although it is in the process of hiring 100 cabin crew in France.

Overall, easyJet operates 1,700 flights in Europe every day and carries 250,000 passengers. The airline has cancelled dozens of flights most days in recent weeks.

In the UK, a lack of capacity at easyJet’s Gatwick hub has also contributed to cancellations.