<P> Located in the London Borough of Hillingdon , Heathrow is by far the largest of London 's airports and considered the main gateway into the United Kingdom for non-European visitors . Heathrow has four terminals and two parallel runways . Due to the location in London 's western suburbs , Heathrow has had trouble trying to expand , with various expansion projects being cancelled . ) As a result , the airport consistently runs at over 99 % capacity and is often included on lists of the worst - rated airports in the world . However , on 1 July 2015 Heathrow 's expansion plan was suggested as the best option by the Airport Commission and on 25 October 2016 a new northwest runway and terminal was approved by the Government . </P>
<P> Located in the London Borough of Hillingdon , Heathrow is by far the largest of London 's airports and considered the main gateway into the United Kingdom for non-European visitors . Heathrow has four terminals and two parallel runways . Due to the location in London 's western suburbs , Heathrow has had trouble trying to expand , with various expansion projects being cancelled . ) As a result , the airport consistently runs at over 99 % capacity and is often included on lists of the worst - rated airports in the world . However , on 1 July 2015 Heathrow 's expansion plan was suggested as the best option by the Airport Commission and on 25 October 2016 a new northwest runway and terminal was approved by the Government . </P>
what is the main airport in london england
what is the main airport in london england
Heathrow
Heathrow