No, you don't. You are still in Britain.
Heathrow and Gatwick
Take the East Coast main line train to King's Cross, then get the Piccadilly Line train to Heathrow Airport.
About 3 hours by road.
The London Heathrow airport is the busiest airport within the United Kingdom. The distance between Portsmouth and Long Heathrow airport is exactly 103 miles which takes about one hour and fifty minutes to travel.
2 hours boh
It depends on where you're coming from and how you choose to travel.
If it's Paisley, Glasgow then the quickest way is a flight to Glasgow International Airport (not Prestwick airport). The airport is a 5 minute drive from Paisley Town Centre.
You can't travel directly from Heathrow to Bristol. The best way is probably to take a bus to Reading and get a train from there or travel into Central London and get a train there.
Around 45 miles or 71 kilometres. The travel time is about 1 hour.
you can take heathrow express from airport to paddington station , then from there you can take a bus to London St pancras station and then train to dover, or you can use a taxi which can be cheaper if you travel with your family.
London Underground serves Heathrow Airport from three different stations: Heathrow Terminals 1,2,3; Heathrow Terminal 4 and Heathrow Terminal 5. These stations are all on the Piccadilly line which runs through Central London. However, the travel-card does not cover you to travel on Heathrow Express which I believe is what you are referring to.
By bus.