WestJet cuts carry-on baggage limits for passengers from two pieces to one WestJet is making changes to reduce what its passengers can bring aboard flights. After April 4, travellers will only be allowed one piece of carry-on luggage and one personal item. The airline had previously allowed passengers to bring two carry-on items and a personal item. Carry-on luggage includes items such as suitcases, backpacks or bags and must fit a specific sizing device. Personal items include smaller things such as small purses, laptop bags or child restraint devices. For parents travelling with infants a diaper bag is also permitted over and above the carry-on allowance. Items that don't fit the size requirements will have to be checked at the baggage counter before departure and picked up at a carousel after landing.