REVEALED: Why do planes have tiny HOLES in their windows? places PASSENGERS will notice tiny holes in every window on a plane - but what purpose do they serve? Share: Email ThisBlogThis!Share to XShare to Facebook Related Posts:Celebrity Traveller author and scriptwriter Anthony Horowitz OBEMan proposes to girlfriend with monster crocodile right behind himHigh hopes: The 10 best things to do in Val d’IsèreMan proposes to girlfriend with monster crocodile right behind himCelebrity Traveller author and scriptwriter Anthony Horowitz OBE