I flew from Korea to Los Angeles, then from Los Angeles to Miami, and my luggage was checked directly to Miami.

You are a joint ticket to an airport in South Korea-Los Angeles-Miami;

1) On the flight to Los Angeles, fill in the I-94 form and customs declaration form (which will be issued to passengers by the flight attendant). Fill in these two forms in English. If the form is sent to you in English [there are Chinese forms on the flight of China Southern Airlines, only the names of those items are marked in Chinese], if you don't know English, the flight magazine on the passenger plane has Chinese descriptions of the forms. However, it must be filled in English.

2) After arriving in Los Angeles, international flights usually stop at the International Terminal (TBIT). After getting off the plane, follow the people. There is only one way to get to the Arrival Hall. There are two different ways to queue up: one is American citizens and green card holders, and the other is non-immigrant visitors. If you don't understand, ask the China people who arrived on the same plane, there are many people in China], see the immigration official, and hand over the I-94, your passport, customs declaration and other materials (if you are visiting relatives, be sure to show your round-trip ticket; If you study abroad, you must show me-20; If it is business, you should show him the invitation letter from the other company and give it to him. With the official approval, the half chapter of I-94 is affixed to your passport (this half chapter of I-94 is very important, don't lose it, and hand it in when you leave the country). Get your passport, customs declaration and other documents back. This program, with many people waiting in line, takes a long time, about 30 minutes to 1 hour.

3) Pick up your baggage on the baggage carousel of your flight.

4) Take all your luggage (including your checked baggage and carry-on baggage) through the customs inspection and submit it to the customs for declaration, and they will conduct spot checks. One possibility is that they wave and you go; On the other hand, you are required to put your luggage on the conveyor belt of the inspection machine. After the luggage comes, no one is looking for you, so just put it on the trolley and go. There is a third possibility. After the machine inspection, some customs staff want to open the box for inspection, so you have to go to the customs unpacking inspection counter on the spot to open your luggage for them to check. As long as it is not the third case, generally speaking, most people are in the second case. 10 minute. If it is unpacking inspection, it is difficult to estimate the time.

5) If you are a joint flight ticket, after going through the customs, find the baggage transfer office of your airline (usually at the customs exit) and give them your baggage. They will check the labels on your luggage, and sometimes they will check the labels on your plane tickets.

All people who enter the United States must fill in the customs declaration form and pass the customs inspection. American citizens are no exception.