"Hatunen" wrote in message
...
I should think that once one was in the Underground system at
Victoria Station it would be simplest, and possibly fastest
overall, to take the District Line westerly and switch over to
the Picadilly Line at any of several stations, thence directly to
Heathrow. It would certainly save some schlepping of luggage.

Yes, best would be Hammersmith, with cross-platform connection to the
Piccadilly Line which then runs fast as far as Acton.

Alan Harrison