How long to get from flight to coach

Hi. I am taking a little red flight from MAN to LHR. I am then taking the national express coach over the LGW for a flight the next day.

I'm thinking about booking the national express for 1 hour after the expected landing time. Do you think that will be enough time to get from flight to coach assuming it lands on time of course.

The national express website suggests 90 minutes but I am thinking that for a small domestic flight it might not need so much.

I'd go for the 90 mins.

Your flight could be delayed or there could be problems with getting the luggage off etc.

Also depends what their policy on missing your scheduled bus is. if they just put you in the next one then go for the 60 mins but if they ctarge you extra / new fare then go for 90.

They would charge me so 90 mins is probably sensible.

I'm sure heathrow has a bar that I can go in an find something to keep me occupied if I have to wait.