Gatwick and Heathrow are both airports located in London, England. Gatwick is the second busiest international airport, with two terminals and two runways, and is owned by Gatwick Airport Limited. Both runways are not used at the same time because there is little difference between the two of them.
The northern runway can only be used when the main runway is out for any reason. Heathrow airport is owned by Heathrow airport holidays. It possesses five terminals and four runways. Heathrow has a CAA public use aerodrome license, which allows public transport flights of passengers or for the sake of flying instruction. Heathrow is closer to central London, which is more convenient.