Because they are
In most countries, the ruway, or runways, are more than a mile long.
Campbeltown Airport has a runway which is 3049m long so is longer than Manston.
An international airport is an airport that can accommodate international flights. They are normally equipped with customs and immigration facilities. These airports are usually larger and often have longer runways and facilities to accommodate the large aircraft commonly used for international or intercontinental travel.
The runway's length depends on the type of aircraft that uses it. Commercial airliners typically need longer runways than small bush planes, since they weigh more and need a higher speed to take off. The longest runway in the world is at Edwards Air Force Base and is a marked section of a dry lakebed almost 40,000 feet long. The longest paved runway is at Qamdo Bamda airport in Tibet and is 18,045 feet long (this is also currently the highest airport in the world ... at high elevations, longer runways are needed for the same size plane).So, in short: No. Not even all runways at the same airport are necessarily the same length. MCI (Kansas City International), for example, has two runways that are 9,500 feet long and one runway (1L/19R) that's 10,801 feet long. BOS (Logan International in Boston) has 6 runways ranging from just 2,557 feet to 10,803 feet.
Longer
Karachi airport has two runways, the longer one is rough 11200 foot long. An A380 at MTOW needs a runway of approx 9000 foot. Depending on the safety regulations for aircrafts, if should be able to land and take off in Karachi, maybe with reduced weight.
Modeling runways vary from show to show. They can be 20 feet or longer.
Eventually he will no longer be in Denver.
Denver is higher in altitude and the water takes longer to heat.
hard surface runways 1500 ft or longer.
The flight time from San Francisco, California to Birmingham, Alabama is about 4 hours, 2 minutes.
Higher elevations result in thinner air. Thinner air results in less lift being produced by the wings as well as less thrust being produced by the engines. Thus a longer takeoff roll will be required.