PASSENGERS flying with must now pay an additional fee if they want to guarantee their hand luggage does not end up in the hold.

On busy flights it has become increasingly common for airlines to ask people to part with carry-on bags so they can be stored with the checked luggage below. spotted a potential revenue opportunity in this routine and is now charging passengers £2.59 each way to guarantee they can travel with their hand luggage.

The airline’s “guaranteed cabin baggage” option is offered to customers just before they purchase their tickets online.

A message states: “On busy flights, we may need to ask you to put your 10kg hand luggage in the hold if we’ve run out of space in the cabin. If you want to be certain of keeping your hand luggage with you, simply add guaranteed cabin luggage now.”

The new fee means a family of four could have to fork out an extra £20 to go on holiday this summer.

This is likely to rile passengers who are already feeling the pinch of a weakened pound, however, defended its new fee, claiming it offered an “industry leading” 10kg of hand luggage to all passengers.

The news comes a week after another low-cost carrier, Wizz Air, announced it would be scrapping its carry-on luggage fees due to a backlash from passengers.

Airlines are making more money than ever before through add-ons such as priority boarding and seat selection fees.