Maybe you're the sort of traveler who likes to plan your trip down to the finest detail. Or perhaps you prefer to pick up a rental car and see where the wind takes you. Whatever you're into, there are some basics about London Airport (LHR-Heathrow) that no one can go without.Once you've grabbed your gear from the baggage claim area of London Airport (LHR-Heathrow), get set to jump into the driver's seat of your rental car and head into London. The downtown area is situated 16 miles to the east of the terminal.