Plane lands at Heathrow at 6:30 am on Friday (July 29). I'm assuming we'll be on the Tube to Central London by 9:30 and so peak travel. Need to go to Paddington. I'm looking at http://www.tfl.gov.uk/tickets/14416.aspx. Also plan to to Zone 1 sightseeing the rest of the day but starting after 9:30. So, what's the max that we'll be charged. Is it the peak single zone 1-6 fare of £4.50 + the off-peak price cap of £6.60? In other words, £11.10?