The price of Polish airlines is around 3,000, and that of general aviation is around 5,000, which is more than 2,000 cheaper. Because Polish Airlines' catering and flight service are not good, it is cheap.
Aviation is a complex strategic human activity. Refers to the flight activities of aircraft in the earth's atmosphere (airspace), as well as scientific research and education, industrial manufacturing, public transportation, air sports, national defense and military, government management and other related fields.