Jet2 and EasyJet passengers are being reminded to pay attention to a lesser-known rule that applies to all 'wheeled and handled' bags.
Each airline has its own rules regarding the hand luggage passengers can bring on board and the type of suitcases that can be checked in.
Some airlines enforce strict size limits and holidaymakers found with oversized luggage may face additional charges at the check-in desk or airport gate.
EasyJet's standard baggage policy allows all passengers to bring one small under seat bag on board free of charge.There's no weight limit, but the bag must fit under the seat in front of you and cannot exceed 45x36x20cm, like this Chelsea Overnight Bag from luxury suitcase brand Antler.
Read more on ok.co.uk