On Sun, 7 Jan 2007 17:14:19 +0000, Tom Anderson
wrote:

How about Central to Ealing Broadway, then Heathrow Connect to the
airport? JP puts that at 60-65 min. Slower than the HX, not significantly
faster than the tube, but it works with travelcards and it avoids a change
at Holborn - you have to go over a bridge at Ealing, i think, but it'll be
easier than finding your way through a maze of twisty little interchange
passages, all alike, and should be less busy. I'm not sure what the
frequency of the HC is, though

Half-hourly. Incidentally, when did they make Travelcards valid on
Connect?