This is the one part of London I dont exactly love. A badly managed, badly planned airport. One of the busiest in the world and there is no where to sit.
Had to stand for 3 hours and wait for someone to turn up. Immigration is short staffed, baggage halls are over loaded and too many flights land at the same time. There are few meeting points and the joy of meeting a loved one is slightly clouded over by a big FAT CAT boot landing on your toes.
A well meaning cabbie recommended travelling via Birmingham, even if it meant flying to Amritsar first!! :D avoid heathrow say people. They have lost many bags, have security alerts by the tonne and all queues take atleast 3 hours to clear, whether you are coming or going. Sad it is!