關於「London Airport code」標籤，搜尋引擎有相關的訊息討論：

Heathrow Airport - Wikipediaen.wikipedia.org › wiki › Heathrow_AirportList of airports by IATA airport code: G - Wikipediaen.wikipedia.org › wiki › List_of_airports_by_IATA_airp...London International Airport (@flyyxu) / Twittermobile.twitter.com › flyyxuLondon Heathrow Airport