A FlyerTalk Posting Legend
Join Date: Sep 2009
Location: Minneapolis: DL DM charter 2.3MM
Programs: A3*Gold, SPG Plat, HyattDiamond, MarriottPP, LHW exAccess, ICI, Raffles Amb, NW PE MM, TWA Gold MM
Posts: 100,421
There used to be direct bus service between the airports. In fact, the bus from Cambridge was frequent and went to not only LHR and LGW, but also one other airport closer to Cambridge, but I forget whether it was Luton or Stanstead. I would expect the same setup from other places so that there would be lots of buses between LHR and LGW.