The 2003 World City Holiday Jets subtheme comprised of 13 sets which included the LEGO Air and 12 other sets based on this model that were specifically branded for various commercial airlines such as SAS, ANA, SWISS, Austrian Air, KLM and many others. The difference between the various airline sets were the sticker packs that were included being specific to that carrier.
The LEGO World City theme was released in 2003 until 2004 and was a continuation of LEGO City Center and was later replaced by the City theme. World City contained sets that focused on trains, airplanes, coast guard, police and firefighters.