Originally Posted by
Antonio8069
Your cnx. in YYZ is same airport. In NYC, it involves changing airports. It is as simple as that.
Inbound yes, but outbound no.
AA arrives at Terminal 3 and AC departs from Terminal 1 at YYZ.
So there will be full CBSA arrival immigration and customs, claim bags upon arrival with AA at T3.
I never had to do so but there is an onward bag drop at T3 after customs. Whether you can drop AC T1 bags there I have no idea.
Maybe you will need to take bags over to T1 to check them in with AC
Go to GTAA (YYZ) website and check your connection procedure.