Gary Nelson, who is terminally ill with a form of muscle cancer, was left distraught by the burglary at his home in Radcliffe, Greater Manchester.
Birthday gifts intended for the little boy were also taken in the raid, as well as a bike, TV, jewellery and the family's Ford Fiesta, which was later found burnt out.
The Disneyland tickets were in a box marked Starlight Children's Foundation - a charity which makes the dreams of terminally ill children come true.
Police think the family's home may have been targeted after Gary - known as Gazza - appeared in a TV documentary.
His appalled mum Alexis Roberts, 28, said: "They took stuff they clearly knew was for him. And there are pictures of him everywhere which show him looking poorly."
Gazza was able to fly off to Paris yesterday after friends and family pulled out all the stops to rescue his holiday.