Jet2 shares fell in midday European trading after the London-listed leisure-travel group warned that its profitability next fiscal year could come under pressure. Shares traded down 11.50% at 14.00 pounds after the company said Wednesday that it faced inflationary input cost pressures and would incur additional operational costs to cover gaps in its peak summer flying program.

The boss of Jet2 has warned the holiday group's profit margins could come 'under some pressure' this year, amid higher costs and fragile consumer strength.