關於「TfL Rail Heathrow」標籤，搜尋引擎有相關的訊息討論：

TFL Rail (formerly Heathrow Connect) airport train to Londonwww.londontoolkit.com › travel › heathrow_connect_trainFile:TFL Rail roundel.svg - 維基百科，自由的百科全書zh.wikipedia.org › zh-tw › File:TFL_Rail_roundelHeathrow Terminals 2 & 3 Rail Station - Transport for Londontfl.gov.uk