Heathrow is London and Europe's largest airport and the world's busiest airport in terms of international passenger movement, with flights available to most major airports worldwide. There are 4 other airports serving London, including Gatwick, Stansted, Luton, and London City. Traveling between the city and the airports can be easy with the abundance of public transport links available. However, if you prefer your own private transportation a car hire in London can be booked to meet you up on arrival at the airport of your choice.
Being such a huge and sprawling place, Heathrow has a significant internal transport system to get you where you need to go. All travel within the airport boundary on local bus and Heathrow Express & Connect trains is free. Even if you need to change terminals there is a network of free busses that will take you between terminals if you are connecting to another flight airside.
Heathrow Airport offers a wide variety of dining and shopping options. For a quick bite the cheapest options can be found in the departure areas of all five terminals. Look for Boots, Costa, or Wetherspoons. For a little more of a sit-down meal at a slightly higher price check out the Bridge Bar, Caffe Nero, or Giraffe. All are open until the last flight. The airport also has a couple fine dining options, including Caviar House and Prunier Seafood Bar, and Gordon Ramsay Plane Food. Take a nice meal before you head out to your destination in a London rental car.
On your way out of London you can stop into The Chocolate Box at Heathrow Airport to pick up the perfect last minute gift for anyone you may not have found a souvenir for during your stay.