Is it true that Jet2 will start this summer charging for each piece of hand-luggage?!
The 'Terms and Conditions' for all Jet2 flights are those in force on the
day of booking irrespective of the date of travel.
The current T&C is 'You may carry onboard 1 piece of cabin baggage max 10kg and no larger than 50cmx38cmx26cm, free of charge subject to our conditions and limitations (details available on request)'.
However, it is quite possible that Jet2 could change their Cabin Baggage policy at some specified future date but I think this would be highly unlikely due to practical reasons associated with airport implementation.
Should Jet2 feel it necessary to generate revenue from this potential source, I would imagine that the 10kg free allowance be reduced to 5kg with an option to purchase a further 5kg at the booking stage.