1. There is no boarding gate because the boarding pass was printed too early and the flight has not been assigned a boarding gate.

2. The boarding gate information is usually provided 2 hours before the plane takes off, so you can check it on the flight information screen of the airport according to the flight number.

The boarding gate is not shown on the boarding pass. Sometimes it may be caused by staff mistakes. This situation can be reissued by the staff.

4. How to change the boarding pass:

(1) Check in at the airport with your ID card: You need to check in at the designated counter at the airport (allocate seats and get your boarding pass). The staff will confirm your e-ticket according to your ID number or name and your flight number, print your boarding pass and guide you to check your luggage.

(2) Use airport self-service check-in equipment: You can use self-service check-in equipment at the airport with your valid machine id (the certificate entered when booking tickets), check in according to the screen prompts, select the seat on the plane, and print the boarding pass.

(3) Note: The seats on the plane are not determined when buying tickets, but only when changing boarding passes at the airport. There are seats on the boarding pass.

(4) If you want to see the scenery, you need to choose a window seat. Avoid sitting near the engine to reduce the influence of noise and vibration. There are more options to get your boarding pass early. You can tell the staff about your requirements when you change your boarding pass.

1. boarding pass/boarding pass is the boarding certificate provided by the airport for passengers flying. Passengers must provide valid air tickets and personal identification documents to obtain them. Some people also call it boarding pass or boarding card.

2. Before 1980s, the printing of boarding passes used in China was very simple, and most of them were filled in by hand and stamped with rubber stamps. With the wide application of computer technology, all airports or airlines now use computer printing. In recent years, boarding passes have been printed more beautifully, and many advertisements have appeared on the back, which has become a fascinating collection.

3. On April 8th, 2009, China Southern Airlines cooperated with China Mobile to launch electronic boarding pass service in China. Now boarding passes are in the form of international English sheets, and the patterns are more colorful.

4. The boarding pass with magnetic stripe will be used from 1983. Some shortcomings of bar codes make airlines and passengers restricted in their use. The magnetic stripe boarding pass needs to install an expensive printer at the check-in counter or kiosk at the airport, which limits the way for passengers to obtain boarding passes. Moreover, the magnetic stripe boarding pass also needs expensive special material paper.

5. In 1990s, some operators began to use one-dimensional bar codes, which consist of a series of parallel straight lines and look like UPC bar codes in department stores. In fact, in the 1960s, one-dimensional bar codes were first applied to the railway industry, but only relatively limited data information could be recorded.

6. After several years of exploration and development, IATA formulated a standard two-dimensional bar code-known as PDF4 17 in 2005. Record more information by using square, circle and other geometric codes, which are not limited by size and readability, and support many types of scanners and printers. Printed 2D barcodes also support many security and encryption functions.

References:

Baidu encyclopedia-boarding pass