The plane from Beijing to Washington, D.C. belongs to Qatar Airways, which transits in Doha. What other procedures do I need to go through to transfer in Doha?

1. You don't need to enter Doha, just transfer directly. The connecting flight of Qatar Airways is OK. There is a special yellow luggage tag for connecting flights. Just follow the sign of international transit after you get off the plane. You don't need to enter Doha. If you want to enter China, you can apply for a visa in advance. There is a link on the website of Qatar Airways.

2. Baggage requirements: The number of free checked baggage in economy class of Qatar Airways North America route is 2 pieces, 23kg for a single piece and 3 times for a single room, not exceeding 158cm. Carry-on baggage 1 piece, the weight limit is 5 kg, and it shall not exceed 1 15 cm for three times.

Connecting ticket means that 20% of flights get boarding passes of two flights in Beijing directly under one ticket number. During the transit in Doha, you don't need to enter the country to pick up your luggage. The luggage is directly connected to Washington. In Doha, you just need to get off the plane and find the next boarding gate with your carry-on luggage.