The numbering principle of flight number of each flight (referring to aircraft)

At present, the flight number of domestic flights in China consists of the two-character code of the airline plus four Arabic numerals, and the airline code is promulgated by the Civil Aviation Administration of China.

The last four digits represent the area where the airline base is located, the second represents the area where the terminal building of the flight base is located, in which the number 1 represents North China, 2 represents Northwest China, 3 represents South China, 4 represents Southwest China, 5 represents East China, 6 represents Northeast China, 8 represents Xiamen, 9 represents Xinjiang, and the third and fourth digits represent flight numbers, that is, the specific flight numbers.

If the fourth digit is odd, it means the flight from the base; If it is even, it means the return flight from the terminal to the base.

Take CA 1206 as an example. CA is the code of China International Airlines. The first digit 1 indicates North China, and Air China's base is in Beijing. The second digit 2 represents the northwest, and Xi 'an belongs to the northwest region; The last two digits 06 are the flight serial number, and the last digit 6 is an even number, indicating that the flight is a return flight. CA 1206 is the return flight of Air China from Beijing to Xi 'an.

Extended data

When traveling by air, you must show your valid documents and fill in the passenger reservation form when purchasing tickets. China citizens should show their identity cards, foreigners should show their passports, and compatriots in Taiwan Province Province should hold travel cards for compatriots in Taiwan Province Province. Air tickets are only available to passengers with the names listed on the air tickets, and cannot be transferred or altered, otherwise the air tickets will be invalid and the air tickets fees will not be refunded. ?

When purchasing air tickets, airport construction fees should be levied. Airport construction fee 1980 was tried out in Beijing, and 198 1 was implemented nationwide, and international outbound passengers began to be charged. Later, in order to establish a tourism development fund, the collection target was extended to all outbound passengers except the following passengers:

1. Transfer international passengers who have not left the isolation hall at domestic airports;

2. Passengers leaving the country on international flights or Hong Kong and Macao flights with diplomatic passports;

3. Children under the age of 12 who hold half a ticket are transit passengers on the same day (within 8 hours of the departure time of the next flight when the ticket arrives).