Yes there are such buses, rather frequent. Many passengers need to transfer between airports in London, so trust such services :)
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半年前 来自穷游
好像没有噢。要从盖特威克机场坐盖特威克快速列车(Gatwick Express),往返于伦敦维多利亚火车站(London Victoria Station)和机场南航站楼,每15分钟发车一次,全程30-35分钟,费用为单程17.75英镑。再坐地铁到帕丁顿站转坐希思罗机场快线Heathrow Express.