We are coming by coach from bath to an airport hotel. It looks as if they used to stop at the holiday inn, the comfort inn and the marriot but now they don't give the times of those stops so I am wondering if they still do this. Anyone know? Thanks.
AS far as I know the National Express coaches stop only at the bus stations at the Heathrow terminals. There is something called a "hoppa" bus that travels to the various airport hotels and it is not free. Only took it once a long time ago and it was then 5 pds. Maybe you could contact your hotel and get some info on this.
If you stay at certain hotels on the perimeter road, you can ride for free on local buses between those hotels and the airport. See here.