For my 2 year old, when its the only hand luggage we can take on. I am flying on my own as my dh is away for business and I have taken the opportunity to pop to Sweden to see family. I am having to put the pushchair in the hold, so I will have to carry everything, including ds when he is fractious or I need to be quick. I don't think they have airport pushchairs at heathrow, although they do at Arlanda coming back.