It depends whether the flight is overflying London or if it is taking off or landing at London.
Helicopters fly at low altitude.Passenger planes climb to high altitude.Birds use low altitude height to fly from tree to housetop.Military cargo planes pass over my house at low altitude.
Yes. Many commercial flights exceed 40,000 feet in altitude.
Helicopters fly somewhat close to the ground. They fly near the troposphere. They fly at a lower altitude than planes.
About 20 (on average), most are trans-atlantic Lufthansas and KLM planes.
Yes they do. Go to www.mountainflights.com. For about USD 165 you can fly over Mount Everest. All flights leave from Kathmandu, Nepal.
If it is not upgraded, then no.
If they are in the air so the answer is no, because if planes fly at high altitude and at high speed. It makes it alot difficult to get planes shot down.
There are millions of planes that fly over Cuba on a daily basics. There is to many to count.
yes
Depending on the Planes, it may be due to air traffic and humidity in-flight.
An average plane flies between 5 to 10 km above the surface of the earth. Planes cannot fly below or above the altitude. After this altitude there is not much air.
No, you stop and change planes in Abu Dhabi or Dubai