Originally Posted by
Lee_Again
If you don't want the bus consider the Gatwick Express to Victoria, taxi to Paddington and then the Heathrow express. About a 95% chance it will take less than 90 mins from arrivals to departures. If I was on schedule I'd go for this. Cost is about £50. Quite comfortable and you get to see a bit of London too.
To be honest, I really don't see what the point would be: this would be significantly less comfortable, more expensive, and slower than the coach option.
As others I would go for the direct coach on own if timings work but if it is several of you then a pre-booked mini cab as mentioned by others is a better option.