Do I need to pick up my baggage when I transfer in America?

First, the transfer in the United States depends on the situation before you can decide whether you need to pick up your luggage.

2. If the booked air ticket is transferred by the same airline, there is generally no need to go through the security check before checking the luggage. If the transfer point needs to go through the customs formalities, it is necessary to pick up the luggage and go through the relevant formalities before the transfer.

3. If the first paragraph and the second paragraph of the booked air ticket are not the same airline, you need to go through the check-in procedure and re-check your luggage.

If the luggage is the direct delivery destination, there is no need to take it out and deliver it again. You don't have to leave the airport for direct transfer. You can check in at the transfer counter.

Unless the transfer point needs to go through customs formalities, in this case, you need to pick up your luggage and go through relevant formalities before transferring.