There are several flavours of Aero. These include the Original Aero (which consists of milk chocolate throughout), Mint Aero (with a green bubbly mint-flavour centre covered in milk chocolate), Caramel Aero (with a caramel layer on top of the chocolate layer), Dark Chocolate Aero, White Chocolate Aero, Latte flavour Aero, and Crispy Aeros (similar to Nestlé Crunch bars). Orange Aeros (orange/chocolate layered) were sold for a while, as well. In the 1970s there were also Strawberry flavour bars. In the UK, and recently Canada, Aero Bubbles are also available. These are small, round chocolates, with a bubbly centre, available in Milk Chocolate and Mint flavours.
In 2006 a special Vanilla Milkshake flavour was released only in Japan. It consisted of a vanilla flavour white chocolate centre and outer dark chocolate layer. Also released in 2006 the Aero Vanilla Yoghurt flavour, was released only in Canada. As with all other Aero bars manufactured by Nestlé in Canada, it is manufactured in a peanut-free facility. In Australia there is also an Aero Temptations bar, which has the bubbly chocolate, but with a caramel topping.
In the UK, there is also an Aero mousse-like yogurt sold in mint flavour.