Matters needing attention in connecting flight from China to Houston, USA in Vancouver, Canada

Matters needing attention when transferring from China to the United States in Vancouver. When connecting from Canada to the United States, you don't need to enter Canada, just enter the United States. Please refer to the following process description. Luggage shouldn't be too much trouble. The connecting flight time of nearly 2 hours is more than enough. After all, there are more people going to Canada than to the United States on the same plane. So it won't take long to enter the customs. In addition, there seems to be no special passage, air tickets from Beijing to Karachi. Before the plane arrives in Vancouver, the flight attendant will take out the immigration form for passengers to fill out, and will also ask whether to go to Canada or transfer to the United States. If you want to go to the United States, you will be given an American naturalization form, a ticket from Beijing to Bangkok, and will answer passengers' questions and guide you to fill out the form. There are China people in the flight attendants of Air Canada, and they will help. After getting off the plane, on the entry passage, it should be on the second floor, in front of the Canadian entry counter (you need to go downstairs). There is a door on the left side of the passage and a small counter next to it. There is a sign that says this is the gateway to the US Customs. The ground crew of Air Canada is standing in front of the counter, holding the US immigration form, reminding passengers repeatedly that this door is the gateway to the US Customs. If you haven't filled out the immigration form in the United States (for example, you fell asleep on the plane and didn't get the form, etc.). ), you can fill it in here. Then check your passport and visa, and then let you enter the passage of American customs. Then, go downstairs and enter the customs. American immigration officials will stamp their passports. After entering, it is the US Customs. After handing in the form, they usually ask: Did you bring food? Then, put the carry-on luggage in the X-ray machine and check it again. As for the checked baggage, because when you check in in China, the service staff of Air Canada will put the label of a city in the United States on your luggage. So there seems to be no re-examination in Vancouver. When you enter the customs in Toronto, you must pick up your luggage yourself (of course, at the port of entry in the United States, the ticket from Beijing to Phuket will be delivered, and then you will take your luggage to the customs)