Airport announcements have become a shorthand sound in online video because almost everyone recognises the chime and the echoing terminal voice, even when the words are hard to make out. Creators use short public address clips to establish location in seconds, whether for travel vlogs, vacation recaps or comedy sketches about flying. Because the sound is atmospheric rather than tied to one film, show or meme, it works across many contexts, from realistic scene-setting to ironic contrast when a trip goes wrong.