This article examines how humor works in the code-mixed advertising campaigns of the Spanish airline company Vueling. Using the fetishism approach to multilingual advertising (Kelly-Holmes, 2005) and incongruity theory (Raskin, 1985), this study examines three major types (structural, phonetic, and visual) of humorous deviations in Vueling campaigns, that involve the insertion of foreign languages (mainly English and French) into Spanish colloquial expressions.