About Seattle airport

First of all, welcome to visit the United States.

As for baggage claim, it depends on whether you bought it in full or separately.

If it's a connecting flight, when you check in in Beijing, your luggage will be automatically marked as the last airport in Los Angeles, so you don't have to pick up your luggage in Seattle, just take your carry-on luggage to transfer.

If you bought the ticket separately, you need to pick up your luggage in Seattle, then check it at the counter of Alaska Airlines, check it again, and then take the flight to Los Angeles.

As for the vicinity of Seattle airport ... it's quite desolate and remote ... there's nothing but hotels. But the airport has a light rail to downtown Seattle. If the transit time is particularly long, you can consider it. It takes about 1 hour to get to downtown Seattle by light rail.

If you have any other questions, please keep asking.

I hope I helped you.

Have fun! Have a nice trip! thank you